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  • 1
    Publication Date: 2019-05-09
    Description: Imagine standing on the surface of an alien planet or satellite. High in the sky, a soft breeze is interrupted by the whistling sound of a tiny probe sent from Earth to study the atmosphere, or to land on some high-value target on the surface. Now imagine that this probe is followed by a dozen others, all entering in distributed locations throughout the geographic landscape. These probes are systematically and methodically being released from an orbiting spacecraft, perhaps having arrived months in advance. Or maybe the probes themselves are released systematically months in advance by and approaching mother-ship. Although probes have been sent to celestial neighbors before, what is unique is that these new vehicles had their genesis on the highly popular Cubesat specification My dream is to make spaceflight so mundane, we can actually routinely leave the bounds of our planet to explore en masse our solar system. For that, we must create systems that allow us to bring space exploration within the realm of our everyday lives. No longer exquisite systems but just good enough, where failure is an option and a new opportunity.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN67854
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  • 2
    Publication Date: 2019-07-25
    Description: The cryogenics group at NASA's Goddard Space Flight Center has a long-standing development and test program for laboratory and space-flight adiabatic demagnetization refrigerators (ADRs). These devices are used to cool components to temperatures as low as 0.05 K. At such low temperatures the ADR systems can provide a few micro-Watts of cooling power, so it is important to minimize the conduction of heat to these cold stages from the surroundings. The cold ADR elements are held in place by thin tensioned strings made of Kevlar, chosen for its high strength and stiffness and low thermal conductivity. During laboratory testing, we have observed that occasional significant additional heat loads on the coldest ADR stages correlate with unusually high vibration levels in the cryostat due to a noisy mechanical cryocooler. We theorized that this heat results from plastic deformation of the Kevlar fibers and frictional interactions among them, driven by the cryostat vibrations. We describe tests and calculations performed in attempt to confirm this source of the heating, and we discuss possible strategies to reduce this effect in future ADR suspension systems.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70526 , Cryogenic Engineering Conference; Jul 21, 2019 - Jul 25, 2019; Hartford, CT; United States
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  • 3
    Publication Date: 2019-07-20
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7262 , Exploration and Development of Space (SEDS) Seminar; Mar 29, 2019; Orlando, FL; United States
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  • 4
    Publication Date: 2019-07-19
    Description: Returning samples from Low Earth Orbit (LEO) is no simple task. Whether the samples are scientific experiments or surveillance footage, engineers must overcome many challenges to achieve mission success. In August of 1960 the first payload recovered from LEO, the Corona capsule, carried more photographic coverage of the Soviet Union than all previous U-2 missions. The Corona program proved that re-turning surveillance footage from LEO is possible, the program is still referenced today when designing new sample return missions. Although there are many crucial subsystems that make up a sample return capsule, the avionics subsystem demands the most attention. This paper will discuss how current CubeSat avionics components can be applied to large sample return missions. One advantage of using CubeSat avionics components is that they can fit into a 1.5 U (10x10x15 cm) compartment, leaving more room for the payload. This paper is broken down as follows. First, the reader is introduced to the history of sample return projects. The major design strengths of previous projects are analyzed and applied to the current capsule design. Next, the typical trajectory of a capsule is presented along with mission requirements and operations. During the re-entry phase, the avionics subsystem is responsible for commanding the deployment of the parachute, back shell, and the heat shield. Next, the power subsystem is discussed in detail including a trade study on batteries and voltage regulators. Next, the interface between the Ground Support Equipment (GSE) and the avionics components is discussed. It is important that the capsule is able to provide avionics system state of health to ensure proper functionality before the capsule is launched. Next, an in-depth analysis of current TechEdSat avionics components, with proven flight history, are presented. The various avionics components including the radios, GPS, IMU, temperature sensors, altitude sensors, and ejectors are discussed. The application of cur-rent avionics components to a sample return projects are analyzed. After, the wiring diagram is presented along with a discussion of the design. Next, a summary of how the avionics components are tested and validated is pro-vided. Finally, this article will present current sample return missions TechEdSat avionics components are being applied to. CubeSat Avionics can be applied to almost all sample return missions due to their compact configuration and proven space flight heritage. The TechEdSat team is currently making great progress in returning samples from the International Space Station (ISS) and is excited to present how their avionics components can be applied to a full-scale sample return mission.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN66730 , International Planetary Probe Workshop; Jul 08, 2019 - Jul 12, 2019; Oxford; United Kingdom
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  • 5
    Publication Date: 2019-07-20
    Description: The TSIS instrument has been measuring solar irradiance on a continual basis since January 2018 as an external payload on the ISS. In 2014 when TSIS was directed to fly on the ISS, the jitter environment was highly uncertain, so TSIS designed a robust gimbaled pointing system that showed excellent disturbance attenuation throughout the design, test, and on-orbit phases of the program. This paper discusses how TSIS accounted for this uncertain jitter environment through-out the life of the program.TSIS was able to measure the ISS jitter during commissioning and determined that it was a relatively benign environment less than 4 arcseconds 1 at low frequencies (〈0.5 Hz). More importantly, the measured pointing performance of TSIS was consistently found to be 4 arcseconds 1, which easily satisfied the jitter requirement of 60 arcseconds 1.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN64840 , AAS Annual Guidance and Control Conference; Feb 01, 2019 - Feb 06, 2019; Breckenridge, CO; United States
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  • 6
    Publication Date: 2019-07-20
    Description: In November 2017, the NASA Goddard Space Flight Center (GSFC) Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) experiment successfully demonstrated the feasibility of X-ray Pulsar Navigation (XNAV) as part of the Neutron Star Interior Composition Explorer (NICER) mission, which is an X-ray Astrophysics Mission of Opportunity currently operating onboard the International Space Station (ISS). XNAV provides a GPS-like absolute autonomous navigation and timing capability available anywhere in the Solar System and beyond. While the most significant benefits of XNAV are expected to come in support of very deep-space missions, the absolute autonomous navigation and timing capability also has utility for inner Solar System missions where increased autonomy or backup navigation and timing services are required, e.g., address loss of communication scenarios.The NASA commitment to develop a Gateway to support exploration of the Moon and eventually Mars, as well as current and future robotic missions such as James Webb Space Telescope (JWST), New Horizons, and much more, certainly will tax the existing ground based infrastructure in terms of availability. There- fore, an extended look at the feasibility and potential performance of XNAV for comparable missions is warranted. In this paper, we briefly review the XNAV concept and present case studies of its utility and performance for a Gateway orbit, Sun-Earth libration orbit, and a deep space transit trajectory.
    Keywords: Engineering (General)
    Type: AAS 19-097 , GSFC-E-DAA-TN65066 , Annual AAS Guidance, Navigation and Control Conference; Feb 01, 2019 - Feb 06, 2019; Breckenridge, CO; United States
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  • 7
    Publication Date: 2019-07-24
    Description: The cryogenics and fluids branch at NASA's Goddard Space Flight Center is currently developing a high-efficiency, vibration-free, flight-worthy Continuous Adiabatic Demagnetization Refrigerator (CADR) that consist of two modular units: one that lifts ~6 microW at 50 mK while rejecting its heat to a 4 K thermal sink, and another unit that provides a constant 4 K cooling stage while rejecting its heat to a thermal sink at 10 K. The two units are linked together via a 4 K common platform. This paper discusses the status report on the thermodynamic performance of the 4 -10 K ADR. This ADR utilizes an Nb3Sn superconducting magnet and Gadolinium Gallium Garnet (GGG) as its refrigerant. Results show that an idealized cycle, one where its hold time at 4 K is equal to the recycle time, can lift 13 mW at 4 K with a hold time of 132 seconds.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70601 , 2019 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC/ICMC); Jul 21, 2019 - Jul 25, 2019; Hartford, CT; United States
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  • 8
    Publication Date: 2019-07-24
    Description: Wide Field Infrared Survey Telescope (WFIRST) is the next generation astrophysics flagship mission. The primary mission goal is to probe the expansion history of the Universe and the growth of cosmic structure. The wide field instrument has an operating temperature of 90K. We measured the thermal conductance of several candidate materials and components for thermal subsystem of the instrument at cryogenic temperatures. This paper describes these measurements and presents the results.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70485 , Space Cryogenics Workshop; Jul 17, 2019 - Jul 19, 2019; Southbury, CT; United States
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  • 9
    Publication Date: 2019-07-24
    Description: Tunable laser based illumination sources have been adopted by a number of recent hyperspectral instruments for pre-launch spectral radiometric calibration. Some of these sources use mode-locked cavity configurations, which produce a pulse train and create an undesirable fluctuation in the radiometric source at the mode locking frequency. Although typically this frequency is several orders of magnitude higher than the instrument response, care must be taken to ensure the resultant calibration is not biased due to detector or electronic saturation effects. The temporal averaging properties of an integrating sphere can be used to reduce high frequency fluctuations to an acceptable level. In this work, the time resolved output of an integrating sphere coupled with a mode-locked source was measured. A 76 cm diameter sphere with 30 cm output aperture was illuminated using a mode-locked pulse train at 76 MHz, with single pulse durations of 12 ps. The time constant of the sphere was found to be 36 ns, and the resultant temporal averaging of pulses produced a maximum time varying irradiance at the output of 20% of the mean. The form of this time variance is a sawtooth pattern, with a sharp rise during the introduction of each pulse into the sphere followed by a slower decay between pulses. A comparison of instrument calibration data generated with this integrating sphere using both a mode locked source and a continuous wave source is also given. .
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70606 , SPIE Optics and Photonics; Aug 11, 2019 - Aug 15, 2019; San Diego, CA; United States
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  • 10
    Publication Date: 2019-07-23
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7385 , Institute of Industrial and Systems Engineers (IISE) Conference and Expo 2019; May 18, 2019 - May 21, 2019; Orlando, FL; United States
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  • 11
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    Publication Date: 2019-07-19
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7348 , Huntsville Expo & Tech Forum; May 09, 2019; Huntsville, AL; United States
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  • 12
    Publication Date: 2019-07-25
    Description: K6-1547 Logistics Warehouse Facility Utilization Study- Vehicle Processing Support Area (VPSA)
    Keywords: Engineering (General)
    Type: KSC-E-DAA-TN69833 , NASA Pathways Summer Student Showcase; Jul 17, 2019; Cocoa Beach, FL; United States
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  • 13
    Publication Date: 2019-07-25
    Description: We report the use of a series of high-temperature superconducting leads in a cryostat that require no soldering to replace in the event of a failed lead. The temperature range spanned by the leads is 50 to 3 degrees Kelvin and they typically carry currents up to 4 amperes although they have a much higher capacity in this temperature range. The leads are integrated into the cryostat by clamping both ends to gold-plated copper pads. Support of the leads over the 25-centimeter length is provided by a simple G10 strong back. Details of the clamping interface, measurements of joint resistances, and other interesting observations will be discussed.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70819 , Joint Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC/ICMC 2019); Jul 21, 2019 - Jul 25, 2019; Hartford, CT; United States
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  • 14
    Publication Date: 2019-07-25
    Description: We report modeling, fabrication, cryogenic tensile testing, and magnetic field measurements of a shield around an adiabatic demagnetization stage (ADR) built for the XRISM/Resolve instrument. During testing of a near-identical stage built for Astro-H, a previous spaceflight mission, it was determined that the magnet at full current generated a field external to the shield that violated the maximum dipole-moment requirement of the spacecraft. In addition, there was an interference with the detector assembly nearby when the magnet was greater than 85% of it's typical maximum current. Starting with the Astro-H shield design, we performed a parametric study that increased the thickness of the shield in critical regions. This calculation proceeded until the magnetic field satisfied the estimated maximum field allowed at the detector array based upon the Astro-H measurements. We also performed a detailed measurement of the field generated by the ADR stage at full current as a function of relative angle between the magnet axis and a series of flux-gate magnetometers. Details and results from the calculation and subsequent measurement will be presented.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70573 , Space Cryogenics Workshop 2019; Jul 17, 2019 - Jul 19, 2019; Southbury, CT; United States
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  • 15
    Publication Date: 2019-07-20
    Description: To ensure high quality TSIS science measurements, stringent requirements were levied on the pointing system performance. Several factors complicated the design of the pointing system controller including uncertainty in knowledge of the ISS base motion jitter, the use of direct drive brushless DC motors for the gimbal system, and the presence of TSIS structure low frequency modes. This paper will describe the modeling, simulation, analysis, and robust design techniques employed to reduce risk resulting in a pointing system that met requirements on-orbit.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN65044 , International Conference for Aerospace Experts, Academics, Military Personnel, and Industry Leaders; Mar 02, 2019 - Mar 09, 2019; Big Sky, MT; United States
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  • 16
    Publication Date: 2019-07-20
    Description: The International Space Station offers an attractive platform for external payloads in many regards, but its large, complex structure is challenging for payloads that require precise, unobstructed pointing. As an instrument that measures solar irradiance on a continual basis, the TSIS payload was designed to robustly account for these ISS challenges and is now performing its mission on the ISS with great success.This paper first describes how TSIS was able to measure the ISS background jitter using High-rate Fine Sun Sensor data that was taken during passive solar transits through its field of view. The measurements showed that ISS jitter at the TSIS location on ELC-3 Site 5 is relatively benign with less than 4 arcseconds 1 at frequencies less than 0.5 Hz. This value is lower than previous estimates but agrees well with recent measurements from other external payloads, including OPALS and SAGE III. Because TSIS was designed to be robust to base motion jitter, it has achieved less than 4 arcseconds 1 of pointing error, which provides an extremely precise pointing platform for the solar irradiance measurements. The other challenging ISS characteristic is its large, complex structure that obscures solar viewing at sunrise and sunset from the zenith-facing location of TSIS. Although TSIS was able to predict solar viewing durations during the design phase with relatively high accuracy, the exact timing and causes of obscuration were difficult to predict and understand after TSIS began operating on the ISS. To aid in the understanding of blockage by ISS structure, detailed obscuration maps were created using HFSS measurements that clearly show the exact gimbal angles where blockage occurs and the specific structural features of the ISS that cause the blockage. These maps have helped TSIS to maximize its solar tracking durations each orbit, which has supported the mission in meeting its science objectives.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN65040 , International Conference for Aerospace Experts, Academics, Military Personnel, and Industry Leaders; Mar 02, 2019 - Mar 09, 2019; Big Sky, MT; United States
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  • 17
    Publication Date: 2019-07-25
    Description: Future astronomical instruments will require sub-Kelvin detector temperatures to obtain high sensitivity. In many cases large arrays of detectors will be used, and the associated cooling systems will need performance surpassing the limits of present technologies. NASA is developing a compact cooling system that will lift heat continuously at temperatures below 50 mK and reject it at over 10 K. Based on Adiabatic Demagnetization Refrigerators (ADRs), it will have high thermodynamic efficiency and vibration-free operation with no moving parts. It will provide more than 10 times the current flight ADR cooling power at 50 mK and will also continuously cool a 4 K stage for instruments and optics. In addition, it will include an advanced magnetic shield resulting in external field variations below 5 T. We describe the cooling system here and report on the progress in its development.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70417 , Space Cryogenics Workshop; Jul 17, 2019 - Jul 19, 2019; Southbury, CT; United States
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  • 18
    Publication Date: 2019-07-25
    Description: Future large-scale quantum processors (i.e. 100s of qubits), especially those based on superconducting circuits, will require large cooling powers (~10s of microW) at very low temperatures (〈50 mK) with stringent temperature stabilities to avoid quantum decoherence and thus guarantee successful operation of such systems. One attractive option for providing this cooling is through Continuous Adiabatic Demagnetization Refrigerators (CADR). Scalable state-of-the-art CADRs at NASA's Goddard Space Flight Center have successfully shown to lift 6 W of heat at 50 mK with a 1 K temperature stability while rejecting its heat to a cryocooler at 4K. Carefully planned and proper heat sinking of cables, attenuators, and microwave components at various temperature stages (between 4K and base temperature) is critical in the cooling architecture of quantum computers and can be provided through proper staging of each unit within the CADR system. As an alternative method of cooling, dilution refrigerators with the potential to meet cooling requirements of emerging large-scale quantum processors are also discussed.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70637 , 2019 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC/ICMC); Jul 21, 2019 - Jul 25, 2019; Hartford, CT; United States
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  • 19
    Publication Date: 2019-07-13
    Description: This paper reports on temperature and humidity measurements from a series of ice-crystal icing tunnel experiments conducted in June 2018 at the Propulsion Systems Laboratory at the NASA Glenn Research Center. The tests were fundamental in nature and were aimed at investigating the icing processes on a two-dimensional NACA0012 airfoil subjected to artificially generated icing clouds. Prior to the tests on the airfoil, a suite of instruments, including total temperature and humidity probes, were used to characterize the thermodynamic flow and icing cloud conditions of the facility. Two different total temperature probes were used in these tests which included a custom designed rearward facing probe and a commercial self-heating total temperature probe. The rearward facing probe, the main total temperature probe, was designed to reduce and mitigate the contaminating effects of icing and ingestion of ice crystals and water droplets at the probe's inlet. The probe also serves as an air-sample inlet for a light absorption based humidity measurement. The paper includes a section which discusses total temperature and humidity measurement considerations, and another section which provides an analysis of the main probe's performance characteristics. A computational fluid dynamic model of the flow around the probe was also conducted to gain insight into the trajectory of the flow entering the probe inlet. The experiments included a series of tests in which the relative humidity of the facility flow was swept through with increasingly larger values. The data showed that the rearward facing probe can reasonably capture the flow's total temperature and humidity under mild to moderate icing conditions but produces anomalous results under more intense icing conditions. The experimental data was also compared to an in-house developed thermodynamic model which takes into account the interaction of the main flow with the icing cloud. Comparison to the thermodynamic model showed that the rearward facing probe measured the predicted trends.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN67171 , International Conference on Icing of Aircraft, Engines, and Structures; Jun 17, 2019 - Jun 21, 2019; Minneapolis, MN; United States
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  • 20
    Publication Date: 2019-07-13
    Description: The NASA Orion Capsule Parachute Assembly System (CPAS) development and qualification testing was completed in September 2018. Over the course of the airdrop and ground testing campaign, the team benefited from the ability to design, test, and adjust the design based on observations and inspection results. While the design team used the best knowledge available and attempted to utilize best practices, a number of lessons were learned that should be documented for consideration by future designers. This paper describes these lessons learned including the use of textile reefing loops, the importance of performing joint tests, the impact of using bight sleeves on parachute deployment, and a surprising number of design changes required in the CPAS system after the decision was made to change the suspension line braid to save system mass.
    Keywords: Engineering (General)
    Type: JSC-E-DAA-TN68294 , AIAA AVIATION Forum and Exposition; Jun 17, 2019 - Jun 21, 2019; Dallas, TX; United States
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  • 21
    Publication Date: 2019-07-13
    Description: The qualification of the Orion Capsule Parachute Assembly System (CPAS) system includes exposure to loads and dynamic pressures above the required values as validation of the parachutes' structural integrity. As outlined in the certification plan, each of the four parachutes of the system are to be subjected to 110% of their respective maximum dynamic pressure requirements. The Main and Drogue parachutes have satisfied this overload condition in drop testing and due to cost and schedule constraints, the Forward Bay Cover Parachute (FBCP) and Pilot parachute were subjected to the overload condition in the ground testing described in this document. The test objectives and pass/fail criteria were established and require the parachutes to achieve and maintain a target riser load (associated with a minimum of 110% dynamic pressure overload) for a minimum of three seconds while sustaining no failures of any structural members (vent hoop, radials, suspension line) or any damage which propagates into catastrophic failure of the canopy. Considering the assumptions and limitations associated with the ground testing (primarily non-uniform flow field of the ground test system and variations in parachute manufacturing), a method of establishing the desired overload condition was determined by the technical community and covers the 2-sigma bounds of the drag area distribution derived from drop testing. On June 27, 2017 the testing was executed at the High Velocity Airflow System (HiVAS) facility located at the Weapon Survivability Laboratory (WSL) at the Naval Air Warfare Center, Weapons Division (NAWCWD) China Lake. Engineering Development Unit (EDU) parachutes were used as pathfinders to gain experience with achieving the test conditions. Additional runs were executed to measure the airflow at the same location as the canopy skirt, although this data is not required to satisfy the test objectives and parachute pass/fail criteria. The qualification parachutes were successfully exposed to the target conditions and sustained only minor damage.
    Keywords: Engineering (General)
    Type: JSC-E-DAA-TN68209 , AIAA AVIATION Forum and Exposition; Jun 17, 2019 - Jun 21, 2019; Dallas, TX; United States
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  • 22
    Publication Date: 2019-07-13
    Description: This paper reports results of an investigation into developing a single failure tolerant pyrotechnic linear separation system which features completely redundant explosive trains suitable for human spaceflight. It is a follow up to Flat-H Redundant Frangible Joint Design Evolution 2017 and Flat-H Redundant Frangible Joint Evolution. The paper chronicles the history of the redundant frangible joint development program including testing, analysis, and design improvements from 2014 to the present culminating in a successful proof-of-concept prototype. The paper describes work done to address debris control and containment of combustion products. A performance optimization strategy is presented along with optimization results. Additionally a novel containment manifold design is presented with test results.
    Keywords: Engineering (General)
    Type: JSC-E-DAA-TN67748 , IAASS Conference; May 15, 2019 - May 17, 2019; El Segundo, CA; United States
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  • 23
    Publication Date: 2019-07-31
    Description: The RESOLVE instrument on the upcoming XRISM mission is a rebuild of the SXS instrument that successfully demonstrated high resolution X-ray spectroscopy on the Hitomi mission using a microcalorimeter array at 50 mK. As with SXS, the RESOLVE instrument requires High Temperature Superconductor (HTS) lead assemblies to carry high current to the Adiabatic Demagnetization Refrigerator (ADR) while meeting a very stringent heat conductance budget. For the RESOLVE HTS lead assemblies, we have used new materials and processes to improve the stability and consistency of solder joints to the HTS material. We have also designed a new thermal strap that eliminates stress concentrations on the HTS tapes. We present the results of testing on the engineering model and flight model units, as well as the results of long term testing on prototype solder joints.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70555 , Joint CEC/ICMC - Cryogenic Engineering Conference and International Cryogenic Materials Conference; Jul 21, 2019 - Jul 25, 2019; Hartford, CT; United States
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  • 24
    Publication Date: 2019-07-31
    Description: The -Spec integrated spectrometer operating at ~500 GHz, employs thin film superconducting Nb microstrip transmission lines deposited directly on a thin (450 nm) single-crystal silicon dielectric. This single-crystal silicon layer is chosen as the dielectric layer due to its low intrinsic loss, with the goal of achieving both high- efficiency and precise phase control in a compact spectrometer architecture. To avoid roughening or etching through the thin single-crystal silicon dielectric a liftoff technique was developed for patterning these microstrip transmission lines and ground plane structures. This two- layer liftoff process was designed for use with sputter deposition and resulted in a US patent. Although this original technique provided precise control of linewidth, results of initial prototype spectrometer devices and separate diagnostic co-planer waveguide resonator devices showed that unexpected loss was being introduced due to the lift-off process. This extra loss was believed to be due to the tails (thin tapered regions) at the edge of the metal traces resulting from the sputtering process, as well as an amorphous oxide layer at the Nb-Si interface. We have since demonstrated an improved lift-off technique, which provides a clean metal-Si interface and removes the loss-inducing tails by a two-step selective etching method. This results in a decrease in microwave loss by more than an order of magnitude when measured in co-planar waveguide microwave resonator structures. We present these microwave test results and also SEM and TEM images of the microstrip interfaces and edge profiles before and after application of the improved process.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70432 , International Workshop on Low Temperature Detectors (LTD-18); Jul 22, 2019 - Jul 26, 2019; Milano; Italy
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  • 25
    Publication Date: 2019-07-31
    Description: I've been asked to be a presenter along with a panel of fellow NASA Electromagnetic Compatibility (EMC) engineers at this year's IEEE EMC & Signal and Power Integrity (SIPI) 2019 symposium. The topic I am asked to cover is in regards to I&T horror stories because of my 15 years of personal experience as an EMC test engineer with Code 549. I am planning on only having slides with photos of test methods we no longer use as well as cover some mishaps that have happened over the years both within my organization and throughout the space industry. Highlighting the mistakes that were made, the lessons learned from those incidents and how they've effected how we test today.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN69727 , 2019 IEEE International Symposium on EMC+SIPI; Jul 22, 2019 - Jul 26, 2019; New Orleans, LA; United States
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  • 26
    Publication Date: 2019-08-24
    Description: Seeker 1.0 is a prototype free flying robot that will one day be capable of inspecting human-rated spacecraft. Building off previous free flyer experience, this technology will eventually improve safety of human spacecraft by offering a variety of inspection capabilities for both routine and emergency scenarios providing increased capability and safety over current inspection methods. Seeker 1.0 is capable of 6 degree of freedom flight via a cold gas propulsion system and can operate up to 1 hour via a semi-autonomous guidance, navigation, and control system. The prototype spacecraft is capable of capturing still images at a variety of resolutions up to 13 MP. The initial test flight utilizes a command and data relay box called Kenobi. Kenobi is a derivative of the Seeker design and will communicate between Cygnus and Seeker and store data for post-mission downlink. Seeker and Kenobi have launched inside a NanoRacks External CubeSat Deployer (NRCSD-E) attached to the NG-11 Cygnus ISS resupply vehicle and will operate after Cygnus departs ISS and moves to a safe altitude. Operations will last approximately 30 minutes and will consist of basic vehicle maneuvers while capturing high-resolution still images. With any remaining time and propellant, Seeker will demonstrate additional safety capabilities and maneuvers required for operations around a crewed spacecraft. The Seeker project utilized the Class IE process that allows for streamlined flight hardware development and increased mission risk tolerance.
    Keywords: Engineering (General)
    Type: SSC19-XI-04 , JSC-E-DAA-TN71114 , Annual Conference on Small Satellites; Aug 03, 2019 - Aug 08, 2019; Logan, UT; United States
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  • 27
    Publication Date: 2019-08-13
    Description: NASA ARC (Ames Research Center) is working with SMD-PSD (NASA Science Mission Directorate- Planetary Science Directorate) to address PICA ( Phenolic Impregnated Carbon Ablator) rayon sustainability concerns. In FY16/17, Lyocell Based PICA (PICA-D (Domestic)) was manufactured and limited testing performed showing it to be a good candidate as a potential replacement for heritage rayon. Establishing PICA-D as a "drop in replacement" will allow missions to depend on and design missions with PICA without any risk typical of a replacement.Establishing the extended capability of PICA-D will allow Sample Return Missions with higher entry speed that were not considered before.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN67023 , Outer Planets Advisory Group Meeting (OpAG Spring 2019); 23ý24 Apr. 2019; Washington, DC; United States
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  • 28
    Publication Date: 2019-08-17
    Description: Aerosol Jet Printing (AJP) and other additive electronics technologies will enable new detector assemblies that were not previously possible with traditional assembly processes. This technology has the potential to reduce mass and volume for fabrication and assembly of detector, instrument and electronics concepts by reducing trace widths down to 10 microns, printing on complex geometries, and allowing new concept production. This poster summarizes development efforts of printed interconnects for space applications.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN72038 , NextFlex Innovation Day; Aug 07, 2019 - Aug 08, 2019; San Jose, CA; United States
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  • 29
    Publication Date: 2019-08-31
    Description: Li-O2 batteries have traditionally used carbon based electrodes (graphite, buckypaper) as the cathode of choice due toits good electrical conductivity, stability against non-aqueous electrolytes like dimethoxyethane (DME) and ease ofhandling. But, the carbon cathode also leads to formation of carbonate by-products that increase overpotentials duringcharging leading to degradation of the cathode and reduction of cyclability. Recent investigations have focused on using metal-oxides like SnO2, TiO2 as viable cathodes-alternatives in Li-O2 systems. In this paper, we investigate transparent conducting oxides (TCOs) as cathodes with focus on the interface between the TCO surfaces and the discharge product, Li2O2, in the Li-O2 battery using first principles computations.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN69086 , Electrochemical Society (ECS Meeting); May 26, 2019 - May 30, 2019; Dallas, TX; United States
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  • 30
    facet.materialart.
    Unknown
    In:  CASI
    Publication Date: 2019-08-30
    Description: Every year, approximately 20 satellites are retired because their propellants are exhausted. Primarily limited by fuel, the satellites are usually fully functioning otherwise. The lifetimes of satellites can be extended with the capability of refueling. Not only would refueling extend satellite lifetime, it would also provide future satellites flexibility to prioritize other elements of their missions. Restore-L is a Goddard Space Flight Center Satellite Servicing Projects Division mission with the primary objectives of developing tools, technologies, and techniques to extend the lifetime of satellites - even if they were not designed to be serviced in or- bit. Equipped with five key servicing technology elements, the Restore-L Servicing Vehicle will demonstrate industry-changing satellite servicing technologies. The primary goal of the Restore-L mission is to rendezvous with, grasp, refuel, and relocate a government-owned satellite to extend its lifetime. The Propellant Transfer Subsystem (PTS) is required to deliver measured amounts of fuel to the client satellite in a safe manner.
    Keywords: Engineering (General)
    Type: KSC-E-DAA-TN72194
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  • 31
    facet.materialart.
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    In:  CASI
    Publication Date: 2019-08-28
    Description: R-MXAS is a revolutionary aerospace architecture for realizing a synthetic aperture imaging radiometer (SAIR) with dramatically lower SWaP than existing state-of-the-art (SOTA) methods. The space-based component of the RMXAS system (Figure 1) is a single platform comprising a 1-D sparse / decimated antenna array on a rigid tether (deployed parallel to the horizon) and one or more additional tethered antennas that rotate in a plane orthogonal to the 1-D array.The processing that correlates the data from these two antenna systems and performs image reconstruction has both space-based and ground-based components. The processing exploits the interferometric baselines formed between the rotating tethered antenna at radius R and each of the antennas of the 1-D array on the rigid tether.
    Keywords: Engineering (General)
    Type: HQ-E-DAA-TN67538
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  • 32
    Publication Date: 2019-08-28
    Description: Conceptual Neptune orbiter was designed for the purpose of assessing mission feasibilityBuilt off of the 2017 Pre-Decadal Study, but adapted for drag modulation aerocapture.Science payload includes: Narrow Angle camera, Doppler Imager, Magnetometer, Atmospheric Probe (w/ ASI, Nephelometer, Mass Spectrometer). Baseline concept of operations releases probe prior to orbit insertion, but investigations are ongoing to assess the feasibility of bringing the probe to orbit before release.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN67573 , Outer Planets Assessment Group Meeting; Apr 23, 2019; Washington, DC; United States
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  • 33
    Publication Date: 2019-09-13
    Description: The small Stirling convertor currently under development at the NASA Glenn Research Center (GRC) is designed to produce one watt of electrical power from eight watts of heat. Previous radioisotope power systems (RPS) made use of the General-Purpose Heat Source (GPHS) which produces 250 watts of heat but is unsuitable for a one-watt Stirling convertor. The only heat source available is the Light-Weight Radioisotope Heating Unit (LWRHU) which produces one watt of heat and is primarily used to provide heat to electronics and instrumentation to maintain their appropriate operating temperature. Unfortunately, the LWRHU has a heat flux of 272 W/m-squared compared to the GPHS heat flux of 6000 W/m-squared which greatly increases the demands on the insulation to ensure that enough of the heat produced is available to the convertor and not lost to the environment. An analysis was performed that showed that the insulation must have a thermal conductivity of 0.005 W/mK or better for the system to function. A multi-layer metal insulation package was designed and a prototype was fabricated and tested to investigate the feasibility of this design. The prototype did not meet the requirements; however, the improved thermal model generated using the test data will allow for a second iteration to be developed that has a much higher confidence and meets the performance requirements.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN71004 , AIAA Propulsion and Energy Forum and Exposition; Aug 19, 2019 - Aug 22, 2019; Indianapolis, IN; United States
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  • 34
    facet.materialart.
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    In:  CASI
    Publication Date: 2019-11-02
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7632 , Digital Engineering Integrated Product Team Working Group; Sep 10, 2019 - Sep 11, 2019; Huntsville. AL; United States
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  • 35
    Publication Date: 2019-11-02
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7630 , Army Digital Engineering IPT Presentation; Sep 10, 2019; Huntsville, AL; United States
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  • 36
    Publication Date: 2019-10-31
    Description: Additive manufacturing techniques for electronics, including Aerosol Jet Printing (AJP), Syringe Printing, and Ink Jet Printing, will enable new detector assemblies that were not previously possible with traditional assembly processes. This technology has the potential to reduce mass and volume for fabrication and assembly of detector, instrument and electronics concepts by reducing trace widths down to 10 microns, printing on complex geometries, and allowing new concept production. This presentation summarizes efforts developing printing techniques to manufacture detectors and circuitry for space applications.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN73651 , SMTA Additive Electronics Conference: PCB Scale to IC Scale; Oct 24, 2019; San Jose, CA; United States
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  • 37
    Publication Date: 2019-10-29
    Description: The Exo-Brake is a simple, non-propulsive means of deorbiting small pay-loads from orbital platforms such as the Inter-national Space Station (ISS). Recent flight experiments involving the TechEdSat (TES) 6, 7, 8 are discussed in terms of both targeted and disposal de-orbit techniques. These build on the previous flight experiments with fixed surface areas and now involve improved uplink/downlink communication and GPS for improved targeting and control. The recent targeting experiments are dis-cussed involving the TechEdSat-6,7,8 nanosatellites. The extension of the concept to a 1-stage, 3-stage, and lifting entry sample re-turn system are discussed.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN66825 , International Planetary Probe Workshop; Jul 08, 2019 - Jul 12, 2019; Oxford, England; United Kingdom
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  • 38
    Publication Date: 2019-10-22
    Description: A series of exact analytical solutions is developed for a capsule with two parachutes to verify CAPDYN and FAST results for terminal conditions. The case described herein is for the capsule and two parachutes acting as a fixed system in terminal descent. In this simplest case, the density is modeled as a constant defined by the initial release altitude. The analytical solution predicts the system terminal dynamic pressure, velocity, and altitude for comparison with CAPDYN and FAST simulation results.
    Keywords: Engineering (General)
    Type: NASA/TM-2019-220410/Volume II , NESC-RP-15-01037 , L-21062 , NF1676L-34601
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  • 39
    Publication Date: 2019-10-09
    Description: Micro shutter array (MSA) is a programmable optical spatial filtering device fabricated by MEMS technology, which was originally developed for James Webb Space Telescope to enable multi-object spectroscopy. Next Generation Micro Shutter Array (NGMSA) is an effort to improve JWST MSA by eliminating macroscopic actuation magnet and using electrostatic force to achieve simple and reliable instrument that can support NASAs multiple future missions. We have been fabricating NGMSA with design inherited from JWST, however the legacy design is not friendly for electrostatic actuation because applied force direction on the moving shutter blade is different. We use COMSOL AC/DC modules electrostatics feature to understand electrostatic force applied on an individual shutter within a range of motion and study new candidate designs. Also, structural mechanics module is used to study torsion bars restoration force.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN72455 , COMSOL Conference 2019; Oct 02, 2019 - Oct 04, 2019; Boston, MA; United States
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  • 40
    Publication Date: 2019-10-09
    Description: Starting in 2013 and completing in 2019, the Heatshield for Extreme Entry Environment Technology (HEEET) project has been working to mature a 3-D Woven Thermal Protection System (TPS) to Technical Readiness Level (TRL) 6 to support future NASA missions to destinations with extreme entry environments such as Venus, Saturn, Uranus, Neptune and high-speed sample return missions to Earth. A key aspect of the project has been the building and testing of a 1-meter base diameter Engineering Test Unit (ETU) representative of what could be used for a Saturn probe. This paper provides a high-level overview of the HEEET project including manufacturing and testing of the ETU for structural model verification, establish system capability and verify manufacturing workmanship.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN69963 , Materials Science and Technology 2019 (MS&T19); Sep 29, 2019 - Oct 03, 2019; Portland, Oregon; United States
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  • 41
    Publication Date: 2019-12-21
    Description: In this paper, we will discuss the impact of mounting structures on the installed performance of phased arrays. In particular, performance data for the Conformal, Lightweight Antennas for Aeronautical Communications Technology (CLAS-ACT) antenna will be presented. Performance data from a series of mounting configurations will show that null depth and location is particularly susceptible to change while the main beam steering angle remains relatively stable. In addition, the Portable Laser Guided Robotic Metrology (PLGRM) system will be discussed as a suitable instrument for measuring antenna patterns in complex or difficult locations that are challenging for traditional ranges. The PLGRM system was recently developed at the National Aeronautics and Space Administration's (NASA) Glenn Research Center (GRC) and deployed to measure in situ antenna patterns.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN73955 , Annual​ ​Meeting​ ​and​ ​Symposium​ ​of​ ​the​ ​Antenna​ ​Measurement​ ​Techniques Association (ATMA 2019); Oct 06, 2019 - Oct 11, 2019; San Diego, CA; United States
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  • 42
    Publication Date: 2019-12-21
    Description: NASA future missions demand safe, high specific energy (〉400 Wh/kg) batteries. Current state-of-the-art (SOA) lithium-ion batteries (LIBs) can only provide ~150-200 Wh/kg in energy capacity, which is unable to meet NASA's future energy goals, and also pose safety issues due to the use of liquid flammable electrolyte. There are intense on-going development activities to increase battery energy density. The use of Li metal as an anode material has emerged as one highly attractive option for achieving high-energy, next generation batteries. This is because Li has many advantages. It is the lightest metal, but also has the highest theoretical capacity. It also has the lowest potential, which boosts whole cell voltage, and Li metal is 100% active material and requires no binder. Thus, Li metal is an ideal anode material for high energy battery chemistries. Lithium metal based advanced battery chemistries are envisioned to be mission enhancing and, in many cases, mission enabling for future space and aeronautic applications. However, the reliable use of this exceptionally high capacity anode in a commercial rechargeable battery has not been achieved due to safety and reliability concerns resulting from thermal runaway and short-circuit issues due to dendritic growth on the Li metal anode from lithium plating during charge-discharge cycles. A solid state electrolyte, such as garnet/ceramic or solid polymer nanocomposite electrolyte, is a promising approach to make Li metal safely cycling. The solid state electrolyte is non-flammable and eliminates leakage and fire hazard by replacing the liquid flammable electrolyte. However, the low-ionic conductivity and high interfacial impedance are the key issues to be overcome. In this presentation, the research activities on solid state electrolyte development funded by the NASA Advanced Energy Storage System program and by the NASA Center Innovative Fund will be presented, and the progress and results will be also discussed.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN74072 , Electrochemical Society (ECS) Meeting; Oct 13, 2019 - Oct 17, 2019; Atlanta, GA; United States
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  • 43
    Publication Date: 2019-09-06
    Description: To enable NASAs planned long duration missions, the agency is putting emphasis on reusable cryogenic systems. Such systems will require replenishing of cryogens on-orbit via a cryogenic tanker or refueling depot, and potentially on the lunar or Martian surfaces with the utilization of in-situ resources. Surface replenishing requires the in-situ production of gaseous oxygen (and hydrogen if on the lunar surface), followed by liquefaction and storage. Funded by NASAs Advanced Exploration Systems, and managed under the Advanced Cis-Lunar Space Capability Project, the Cryogenic Fluid In-Situ Liquefaction for Landers (CryoFILL) multi center team was formed to develop a liquefaction and storage system that is efficient, reliable and scalable. This presentation will demonstrate the liquefaction and storage of In-Situ like propellant via a Tube-On-Tank Heat Exchanger integrated with Active Cooling (cryocooler) (verify proof of concept and obtain relevant data for model validation) and gather lessons learned from brassboard testing which will be applied to future liquefaction system prototype testing, then eventually to an end-to-end demonstration.
    Keywords: Engineering (General)
    Type: M19-7517 , Space Cryogenics Workshop; Jul 17, 2019 - Jul 19, 2019; Southbury, CT; United States
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  • 44
    Publication Date: 2019-10-12
    Description: The American Concrete Institution (ACI) Universidad de Cuenca Chapter, from Ecuador, is pleased to inform you that Mr. Rob Mueller, Director of Swamp Works, is invited to our academic event named II International Symposium of Cement and Concrete Technology. The dates of the event are from the 8th to 9th of October 2019 in the Carlos Cueva Tamariz Theater, Cuenca - Ecuador. This event is part of the commencement of the 80 years of institutional life of the Faculty of Engineering and is ideal opportunity to establish connections with the industry and academia.During this experience Senior Technologist Rob Mueller will have the opportunity to speak in two 45 min sessions about The Swamp Works. Topic: The rapid, innovative, and cost-effective exploration mission solutions of NASA.
    Keywords: Engineering (General)
    Type: KSC-E-DAA-TN73485 , I International Symposium of Cement and Concrete Technology; Oct 08, 2019 - Oct 09, 2019; Cuenca; Ecuador
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  • 45
    Publication Date: 2019-11-27
    Description: As communicated at various forums, a multilateral, web-based symposium, featuring ISS Increments 61 and 62 investigations will be held on September 17, 18 and 19, 2019 beginning at 0600 CDT. The purpose of this event is for Principal Investigators to present their science objectives, testing approach, and measurement methods to agency scientists, managers, and other investigators. Participation is encouraged to gather a global picture of the science planned to be performed on ISS during Increments 61 and 62.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN73235 , ISS Increment 61 and 62; Sep 18, 2019; Cleveland, OH; United States
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  • 46
    Publication Date: 2019-10-11
    Description: In this paper, we will discuss the impact of mounting structures on the installed performance of phased arrays. In particular, performance data for the Conformal, Lightweight Antennas for Aeronautical Communications Technology (CLAS-ACT) antenna will be presented. Performance data from a series of mounting configurations will show that null depth and location is particularly susceptible while the main beam steering angle remain relatively stable. In addition, the Portable Laser Guided Robotic antenna range (PLGR) will be discussed as a suitable instrument for measuring antenna patterns in complex or difficult locations that are challenging for traditional ranges. The PLGR antenna range was recently developed at the National Aeronautics and Space Administration's (NASA) Glenn Research Center (GRC) and deployed to measure in situ antenna patterns.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN71740 , Annual​ ​Meeting​ ​and​ ​Symposium​ ​of​ ​the​ ​Antenna​ ​Measurement​ ​Techniques Association (ATMA 2019); Oct 06, 2019 - Oct 11, 2019; San Diego, CA; United States
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  • 47
    Publication Date: 2019-09-28
    Description: No abstract available
    Keywords: Engineering (General)
    Type: MSFC-E-DAA-TN73522 , Space Technology Mission Directorate Game Changing Development Program FY19 Annual Review; Sep 24, 2019; Arlington, VA; United States
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  • 48
    facet.materialart.
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    In:  CASI
    Publication Date: 2019-10-22
    Description: Functions of the Branch: Cross-Cutting Fluids Engineering; Research and Technology Development of Cryogenic Fluid Management (CFM) Systems; Component and System level; Design, Development Test and Evaluation (DDT&E) for Fluid, CFM, Propellant and Gaseous Systems; Fluid Component Specification and Selection; Code Compliance of Pressurized Systems; Fluid/Cryogenic System Performance Analysis and Trade Studies; Hazards Analysis and Risk Assessment of Fluidic Systems; Fluids Modeling and Simulation Capabilities
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN73580 , GRC Capabilities Forum-Industry Day; Sep 26, 2019; Cleveland, OH; United States
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  • 49
    facet.materialart.
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    In:  CASI
    Publication Date: 2020-01-23
    Description: The paper introduces the midpoint monitoring method for detecting cell voltage imbalance in a series string of 8 electrochemical cells. Monte Carlo analysis is performed for normal cell End of Discharge open and closed circuit voltage behavior to assess the extent to which derived guard band voltage limits will detect over discharged cells, provide false positive indication, or fail to detect over discharged cells. Forward work is proposed to refine the battery monitoring method for operational use in 28V lithium ion batteries.
    Keywords: Engineering (General)
    Type: JSC-E-DAA-TN75972 , NASA Aerospace Battery Workshop; Nov 19, 2019 - Nov 21, 2019; Huntsville, AL; United States
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  • 50
    Publication Date: 2020-01-04
    Description: At the beginning of the Space Age, spacecraft designers and mission planners were very concerned about meteoroids. They envisioned vehicles being ripped to pieces by streams of fast-moving space rocks, a notion promoted by the science fiction novels and movies of the time. The reality is, of course, differentthe meteoroid streams that produce meteor showers are not dense by laypeoples standards, having spatial densities of just a handful of particles per cubic kilometer, even during meteor outbursts. The ever-present, diffuse, sporadic background, which produces observed meteor rates of only 5 to 8 meteors per hour, makes up 90% of the meteoroid risk to spacecraft that spend at least a year in low Earth orbit (LEO), whereas the visually spectacular but short-lived meteor showers make up the other 10%. Still, meteoroids do pose a significant risk to spacecraft. At Earth, they can travel 12 to 72 km/s. These high speeds cause even small meteoroids to carry enormous kinetic energy, making them capable of doing serious damage to spacecraft. For example, a 1-mm-diameter meteoroid moving at 25 km/s can inflict the same damage as a bullet fired from a 0.357 Magnum pistol. An exterior wire can be severed by a 0.1-mm (100 mm) particle, a spacesuit can be penetrated by a 0.5-mm meteoroid, and an unshielded pressure wall (like the cabin of the Space Shuttle) can be perforated by centimeter-sized particles. Along with mechanical damage, meteoroids can also cause other types of spacecraft anomalies. Meteoroids can transfer their momentum to the spacecraft, which can destroy or damage equipment such as shunt resistors and charge-coupled device (CCD) detectors with a clear view of space. Meteoroid impacts can also generate plasma. The impact vaporizes material, producing a crater and an expanding plasma, which can in turn provide a conductive path for any charge accumulated on the spacecraft. This effect is thought to be responsible for the demise of a satellite in one case: the OLYMPUS communications satellite was sent tumbling out of control during the 1993 Perseid outburst, and a Perseid meteoroid strike has been posited as a possible cause (McDonnell et al. 1993; Caswell et al. 1995). Other researchers have suggested that very fast meteoroids could produce a small electromagnetic pulse capable of disrupting spacecraft function (Close et al. 2010).
    Keywords: Engineering (General)
    Type: NASA/TM-2019-220142 , M-1494 , M19-7814
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  • 51
    facet.materialart.
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    In:  CASI
    Publication Date: 2019-07-16
    Description: No abstract available
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN65440 , ISS Kibo Symposium; Feb 12, 2019 - Feb 13, 2019; Tokyo; Japan
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  • 52
    facet.materialart.
    Unknown
    In:  CASI
    Publication Date: 2019-12-10
    Description: No abstract available
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN75610 , Mission Operations Working Group Meeting; Dec 03, 2019 - Dec 05, 2019; Gilbert, AZ; United States
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  • 53
    Publication Date: 2019-11-06
    Description: NASA's Centennial Challenges program uses prize competitions with the goal of accelerating innovation in the aerospace industry. Competitions in the Centennial Challenges portfolio have previously focused on advancements in space robotics, regolith excavation, bio-printing, astronaut suit design, small satellites, and solar-powered vehicles. NASA's Three Dimensional (3D) Printed Habitat Centennial Challenge represents a partnership between NASA and the non-profit partner: Bradley University, with co-sponsors Caterpillar, Bechtel, Brick and Mortar Ventures, the American Concrete Institute, and the United States Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC) to spur development in automated additive construction technologies. The challenge asks teams to design and construct a scaled and simulated Martian habitat using indigenous materials and large scale 3D automated printing systems. Phase 1 of the competition, held in 2015, was an architectural design competition for habitat concepts that could be 3D printed. Phase 2, completed in 2017, asked teams to develop feedstocks from indigenous materials and hydrocarbon polymer recyclables, and demonstrate automated printing systems to manufacture these feedstocks into test specimens to assess mechanical strength. This paper will discuss the Phase 3 competition, focusing on technology outcomes that can potentially be infused into both terrestrial and planetary construction applications. The Phase 3 competition was divided into two sub-competitions: 1) virtual construction, where teams created a high fidelity building information model (BIM) of their 3D-printed habitat design and 2) the construction competition, which required teams to 3D print a structural foundation and subject materials samples to freeze/thaw testing and impact testing (level 1), produce a habitat element and complete a hydrostatic test (level 2), and additively manufacture a 1:3 scale habitat onsite in a head to head competition at Caterpillar, inc.'s Edwards Demonstration & Learning Center near Peoria, Illinois over the course of three days (level 3). While the Phase 2 competition focused primarily on the development of novel feedstocks and robotic printing systems, Phase 3 emphasized the scale-up of these systems and autonomous operation (demonstrating the capability to operate systems on precursor missions prior to the arrival of crew, or terrestrially in field operation settings where human tending of a manufacturing system may be limited). The Phase 3 virtual construction levels yielded a number of novel habitat designs, including both modular habitats and vertically-oriented habitat concepts. The Phase 3 construction competition also challenged teams to autonomously place penetrations and interfacing elements in additively manufactured structures. The paper will emphasize potential applications for the new materials and technologies developed under the umbrella of the competition within NASA's portfolio and in Earth-based applications such as disaster response and infrastructure improvement.
    Keywords: Engineering (General)
    Type: KSC-E-DAA-TN74188 , International Astronautical Congress (IAC) 2019; Oct 21, 2019 - Oct 25, 2019; Washington, D.C.; United States
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  • 54
    Publication Date: 2019-12-05
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7688 , Center for the Utilization of Biological Engineering in Space (CUBES) Seminar (Virtual); Oct 15, 2019; Huntsville, AL; United States
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  • 55
    Publication Date: 2019-10-16
    Description: The Ascent Abort-2 Crew Module and Separation Ring (CSR) were developed internally to NASA, led by the JSC EA Integrated Product Team. The CSR IPT leveraged Sharepoint as an Integrated Data environment to link systems engineering and project management data element, enabling collaborative development and engagement from across the project (NASA-wide). This presentation describes the mission, the development approach, and the benefits of this approach. flight operations
    Keywords: Engineering (General)
    Type: JSC-E-DAA-TN73409 , Annual Texas Gulf Coast Chapter Systems Engineering 2019 Conference; Oct 10, 2019; Houston, TX; United States
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  • 56
    Publication Date: 2019-12-31
    Description: GNSS signals can be blocked and reflected by nearby objects, such as buildings, walls, and vehicles. They can also be reflected by the ground and by water. These effects are the dominant source of GNSS positioning errors in dense urban environments, though they can have an impact almost anywhere. Non- line-of-sight (NLOS) reception occurs when the direct path from the transmitter to the receiver is blocked and signals are received only via a reflected path. Multipath interference occurs, as the name suggests, when a signal is received via multiple paths. This can be via the direct path and one or more reflected paths, or it can be via multiple reflected paths. As their error characteristics are different, NLOS and multipath interference typically require different mitigation techniques, though some techniques are applicable to both. Antenna design and advanced receiver signal processing techniques can substantially reduce multipath errors. Unless an antenna array is used, NLOS reception has to be detected using the receiver's ranging and carrier-power-to-noise-density ratio (C/N0) measurements and mitigated within the positioning algorithm. Some NLOS mitigation techniques can also be used to combat severe multipath interference. Multipath interference, but not NLOS reception, can also be mitigated by comparing or combining code and carrier measurements, comparing ranging and C/N0 measurements from signals on different frequencies, and analyzing the time evolution of the ranging and C/N0 measurements.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN68921 , Position Navigation & Timing technologies in the 21st Century
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  • 57
    Publication Date: 2019-08-20
    Description: Johnson Space Center uses a specialized Cold Box (Space Cooler) to keep items cool for delivery to and from the International Space Station. The Space Cooler is constructed out of several vacuum panels with aerogel cores. These panels are designed and constructed into a box shape for cold stowage purposes. The Space Cooler is optionally packed with cold bricks (phase-change material) as shown in the figure. This Space Cooler needs to perform without active refrigeration (passive only).
    Keywords: Engineering (General)
    Type: KSC-E-DAA-TN70986
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  • 58
    Publication Date: 2019-08-16
    Description: No abstract available
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN70588 , International Planetary Probe Workshop; Jul 08, 2019 - Jul 12, 2019; Oxford, England; United Kingdom
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  • 59
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    Unknown
    In:  CASI
    Publication Date: 2019-08-23
    Description: No abstract available
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN72303 , Gateway F2F Meeting; Aug 15, 2019; Houston, TX; United States
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  • 60
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Engineering (General)
    Type: M19-7316 , Natural Environments Day-of-Launch Working Group; Apr 24, 2019 - Apr 25, 2019; Kennedy Space Center, FL; United States
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  • 61
    Publication Date: 2019-07-13
    Description: This paper presents the thermal design of actuators in the perching arm of Astrobee robot that will operate inside the International Space Station (ISS) starting in 2019. Since the crew's safety is of the utmost importance on the ISS, all materials used in the Astrobee robot should meet the touch temperature requirements according to the ISS safety standards to protect crew from skin burns by controlling the exposure temperature. The Astrobee perching arm consists of 2-DOF (Degrees-of-Freedom)- arm servo motors and 1-DOF gripper DC motor, which are capable of overheating in the stalled condition. Thermal properties of two types of actuators are verified by monitoring the touch temperature in worst-case operations with no thermal protection. Then, the proper thermal protection designs have been conducted and installed to guarantee the safety in all conditions.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN60874 , IEEE/SICE International Symposium on System Integrations (SII 2019); Jan 14, 2019 - Jan 16, 2019; Paris; France
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  • 62
    Publication Date: 2019-07-13
    Description: This poster provides an overview of the requirements, design, development and testing of the 3D Woven TPS being developed under NASAs Heatshield for Extreme Entry Environment Technology (HEEET) project. Under this current program, NASA is working to develop a Thermal Protection System (TPS) capable of surviving entry into Saturn. A primary goal of the project is to build and test an Engineering Test Unit (ETU) to establish a Technical Readiness Level (TRL) of 6 for this technology by 2018. Poster also discusses use of HEEET TPS for probe missions to the Ice Giants, Uranus and Neptune.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN67024 , The Outer Planets Assessment Group (OPAG) Spring Meeting; Apr 23, 2019 - Apr 24, 2019; Washington, DC; United States
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  • 63
    Publication Date: 2019-09-11
    Description: The Flow Boiling and Condensation Experiment (FBCE) is a flight experiment that is designed to operate in the Fluids Integrated Rack (FIR) on the International Space Station (ISS). The objective of the FBCE is to develop an integrated two-phase flow experiment that will serve as a primary platform for obtaining flow boiling and condensation heat transfer data in microgravity. This data will enable the design and analysis of two-phase thermal management systems for future NASA missions that require increased efficiency beyond the current single-phase systems. The FBCE consists of seven modules, each of which must link together mechanically, electrically, and fluidically upon final integration. Five of the modules provide the fluidic and electronic components required to bring the test fluid to the inlet conditions required by the test module, where the primary science is conducted. These inlet conditions encompass fluid quality ranging from a superheated vapor to a subcooled liquid at a variety of flow rates and pressures. The FBCE is currently manufacturing two test modules, each of which has its own separate test campaign with the five support modules. Each of the modules presents a unique challenge in its assembly and checkout, particularly related to ensuring the final hardware configuration can meet the fluid and thermal requirements levied upon them. Following assembly, a series of flight verification tests will be performed, including thermal testing, EMI testing, and final integration in a FIR Ground Integration Unit. This presentation discusses the status of the FBCE as it continues through final verification testing, including current test results and lessons learned throughout the assembly and integration phase of the project. In addition, future options for additional flight test sections will be explored that will benefit the broader NASA thermal and fluids community.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN72654 , Thermal and Fluids Analysis Workshop (TFAWs); Aug 26, 2019 - Aug 30, 2019; Newport News, VA; United States
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  • 64
    Publication Date: 2019-11-21
    Description: A presentation of our SUPERball v2 robotic prototype as an invited speaker for a tensegrity based workshop at the International Conference of Robotics and Automation.
    Keywords: Engineering (General)
    Type: ARC-E-DAA-TN69074 , International Conference of Robotics and Automation (ICRA); May 20, 2019 - May 24, 2019; Montreal, Montreal; Canada
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  • 65
    Publication Date: 2019-11-20
    Description: In 2016, the NASA Advanced Exploration Systems (AES) project office funded research at the NASA Glenn Research Center to evaluate the maturity of the Proton Exchange Membrane (PEM) fuel cell technology and its viability for supporting launch vehicle and space applications. This technology evaluation included vibration, reactant purity, and vacuum exposure sensitivity testing. The evaluation process did not include microgravity testing. This paper discusses the vibration sensitivity testing of two air-independent fuel cell stacks provided by different vendors to assess the ability of currently available fuel cell stack hardware to survive the projected random vibrational environment that would be encountered in an upper stage launch vehicle. Baseline performance testing was utilized to quantify stack performance and overboard leak rate at standard atmospheric conditions in order to provide a reference for post-test comparison. Both fuel cell stacks were tested at a random vibration qualification level of 10.4 grms for five minutes in each axis. Low-level sinusoidal sweeps were conducted before and after each random vibration level run to see if any significant change in resonances were detected. Following vibration facility testing, the baseline performance testing was repeated. Test results demonstrated no measurable change in fuel cell electrochemical or mechanical performance, indicating that the two evaluated PEM fuel cell stacks may be suitable for space applications pending microgravity testing.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN68132 , ASME International Mechanical Engineering Congress & Exposition; Nov 11, 2019 - Nov 14, 2019; Salt Lake City, UT; United States
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  • 66
    Publication Date: 2020-01-23
    Description: Low power Stirling convertors are being developed at NASA Glenn Research Center to provide future small spacecraft with electrical power by converting heat from one or more Light Weight Radioisotope Heater Units (LWRHU). An initial design converts multiple watts of heat to one watt of electrical power output using a Stirling convertor. A variety of mission concepts have been studied by NASA and the U. S. Department of Energy that would utilize low power Radioisotope Power Systems (RPS) for probes, landers, rovers, and repeaters. These missions would contain science instruments distributed across planetary surfaces or near objects of interest where solar flux is insufficient for using solar cells. Landers could be used to provide data such as, radiation, temperature, pressure, seismic activity, and other surface measurements for planetary science and to inform future mission planners. The studies propose using fractional versions of the General Purpose Heat Source or multiple LWRHUs to heat power conversion technologies for science instruments and communication. Dynamic power systems are capable of higher conversion efficiencies, which could enable equal power using less fuel or more power using equal fuel, when compared to less efficient static power conversion technologies. Providing spacecraft with more power would decrease duty cycling of basic functions and, therefore, increase the quality and abundance of science data. Efforts to develop the concept have focused on maturation of a 1-We convertor and controller design and performance evaluation of an evacuated metal foil insulation. A proof-of-concept 1-We convertor, controller, and evacuated metal foil insulation package have been fabricated and are undergoing characterization testing. The current status, findings, and path forward for the effort are explained in this paper.
    Keywords: Engineering (General)
    Type: NASA/TM-2019-220316 , AIAA–2019–4065 , E-19731 , GRC-E-DAA-TN71841 , International Energy Conversion Engineering Conference; Aug 19, 2019 - Aug 22, 2019; Indianapolis, IN; United States
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  • 67
    Publication Date: 2020-01-18
    Description: Cryogenic propellant storage tank self-pressurization involves complex physical phenomena which are usually analytically modelled via complex multidimensional CFD codes. Unfortunately these codes, even when modelling axisymmetric domains, may takes weeks or longer to obtain transient pressure and temperature information for relatively short periods of time (several seconds to several hours). Propellant tank storage end-to-end mission simulations can last a duration of days to weeks to months. Multi-node modelling of propellant tanks is a viable alternative to traditional CFD modelling and presents the advantage of greatly reduced run times on the order of hours and days compared to the weeks or longer for CFD codes. A multi-node model represents the fluid within the storage tank, as well as the storage tank itself, as a fluid-thermal network. This type of setup is not necessarily geometrically based. This can be accomplished using a commercial generalized fluid-thermal network code, such as SINDA/FLUINT (SF). The advantage of using a fluid-thermal network code like SF lies in its extensive ability to model the external environment of the storage tank through the graphical user interface, Thermal Desktop (TD). The total heat load into the tank may be a function of heaters and a complex radiative environment as well. Thermal Desktop may be used to address the detailed radiative environment of the tank as well as building a geometrically accurate depiction of the storage tank itself.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN72353 , Propulsion and Energy Forum; Aug 19, 2019 - Aug 22, 2019; Indianapolis, IN; United States
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  • 68
    Publication Date: 2019-12-13
    Description: This presentation attempts to provide a walk-through of how ESMO prepared/is preparing to handle the situation should CARA no longer support day to day operations, with specific updates regarding the parallel operations period (6 month test).
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN75612 , Mission Operations Working Group; Dec 03, 2019 - Dec 05, 2019; Gilbert, AZ; United States
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  • 69
    Publication Date: 2019-12-13
    Description: We describe performance of large-scale arrays of metallic magnetic calorimeters (MMCs) we are developing to meet requirements of the Lynx X-ray Microcalorimeter (LXM) instrument in the astrophysics mission concept Lynx. We have fabricated prototypes with 55,800 x-ray pixels thermally connected to 5,688 MMC sensors. Subarrays demonstrate three types of pixels, which have different energy and spatial resolution goals in LXM. Pixel pitch is 50 or 25 m. For two subarrays, use of position sensitive detectors, in a "hydra" configuration with 25 x-ray absorbers per sensor, helps achieve a large focal plane by increasing pixel count relative to readout channels. Since each absorber has a different thermal link to its sensor, it generates a different pulse shape and enables discrimination of pixel position. Superconducting wiring from all sensors was brought out to the perimeter of the overall array using multiple buried metal layers planarized by Chemical Mechanical Planarization to achieve high critical current, low inductance, and high fabrication yield. An automated, algorithmic approach was used to layout the complex wiring pattern. For readout with existing small arrays of Superconducting Quantum Interference (SQUID) amplifiers, 112 selected pixels were connected to wire bond pads. In hydras, we successfully identified 25 pulse shapes using rise-time and pulse height. Pulse shapes were similar to simulations. We measured noise and responsivity to substrate temperature and applied x-ray pulses. While we designed sensors to have high inductance to relative to stray inductance of wiring, we had only mismatched (lower input inductance) SQUIDs available in our current apparatus, giving non-optimized resolution. We compared measured and calculated energy resolutions. We have the required sensitivity to reach 〈 3 eV FWHM resolution for 6 keV x-rays, required for the LXM Main Array, and the ability to discriminate the 25 different absorber pixels down to energies 〈 300 eV.
    Keywords: Engineering (General)
    Type: GSFC-E-DAA-TN70231 , GSFC-E-DAA-TN75165 , International Workshop on Physics and Applications; Dec 09, 2019 - Dec 11, 2019; Heidelberg; Germany|International Workshop on Low Temperature Detectors; Jul 22, 2019 - Jul 26, 2019; Milano; Italy
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  • 70
    Publication Date: 2019-09-11
    Description: Low power Stirling convertors are being developed at NASA Glenn Research Center (GRC) to provide future small spacecraft with electrical power by converting heat from one or more Light Weight Radioisotope Heater Units (LWRHU). An initial design converts multiple watts of heat to one watt of electrical power output using a Stirling convertor. A variety of mission concepts have been studied by NASA and the U. S. Department of Energy (DOE) that would utilize low power Radioisotope Power Systems (RPS) for probes, landers, rovers, and repeaters. These missions would contain science instruments distributed across planetary surfaces or near objects of interest where solar flux is insufficient for using solar cells. Landers could be used to provide data such as, radiation, temperature, pressure, seismic activity, and other surface measurements for planetary science and to inform future mission planners. The studies propose using fractional versions of the General Purpose Heat Source (GPHS) or multiple LWRHUs to heat power conversion technologies for science instruments and communication. Dynamic power systems are capable of higher conversion efficiencies, which could enable equal power using less fuel or more power using equal fuel, when compared to less efficient static power conversion technologies. Providing spacecraft with more power would decrease duty cycling of basic functions and, therefore, increase the quality and abundance of science data. Efforts to develop the concept have focused on maturation of a 1-We convertor and controller design and performance evaluation of an evacuated metal foil insulation. A proof-of-concept 1-We convertor, controller, and evacuated metal foil insulation package have been fabricated and are undergoing characterization testing. The current status, findings, and path forward for the effort are explained in this paper.
    Keywords: Engineering (General)
    Type: GRC-E-DAA-TN70897 , AIAA Propulsion and Energy Forum and Exposition; Aug 19, 2019 - Aug 22, 2019; Indianapolis, IN; United States
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  • 71
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    Unknown
    Im Selbstverlag des Institutes für Physische Geographie der Freien Universität Berlin, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:46
    Publication Date: 2021-03-29
    Description: Die Geomorphologische Karte 1 : 25 000 der Bundesrepublik Deutschland beschäftigt die Physische Geographie sowohl im akademischen als auch im angewandten Bereich. Immer stärker rücken die Fragen der Anwendung und Auswertung dieser Karten in den Vordergrund. Die Voraussetzungen für die Auswertung der GMK 25 BRD im Schulunterricht sind die grundlegende Fähigkeit zum Kartenlesen von Seiten des Schülers bzw. eine eindeutige Themensetzung von Seiten des Lehrers. Die GMK 25 BRD stellt für den Benutzer ein vielschichtiges Informationsmedium dar. Es werden spezielle kartographische Mittel verwendet, welche die Darstellung abstrakt machen (z.B. für die Reliefdarstellung oder die themenspezifischen Signaturen). Daß dadurch gewisse "Hemmschwellen" für eine Verwendung dieser anspruchsvollen Karten bestehen, ist nicht erstaunlich. Es kann jedoch festgehalten werden, daß sich der in Signaturen unterschiedlichster Art dargebotene Informationsgehalt auch im schulischen Bereich erarbeiten läßt. Die Befähigung des Schülers zur Kartenauswertung stellt sich allerdings nicht von selbst ein, sondern ist zu fordern und zu entwickeln. Durch den in zweifacher Weise lernzielorientierten Einsatz einer GMK 25 BRD, instrumental und themenbezogen, kann den schulischen Ansprüchen entsprochen werden.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Didaktik ; Geologische Karte ; Geologie ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 105
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  • 72
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    Unknown
    Selbstverl. des Inst. für Physikalische Geographie der Freien Univ. Berlin, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:20
    Publication Date: 2021-03-29
    Description: […] Nach einer kurzen geschichtlichen Einführung in die Atlaskartographie, die bei Ptolemäus begann und mit der Herausgabe des Stieler im wesentlichen abgeschlossen wurde, schließt sich eine Analyse mehrerer Weltatlanten an. [...] Im Anschluß daran wurden die Abbildungsgesetze und Gradnetze eines neuen Erdatlas entwickelt. […] Darauf folgt eine Zusammenfassung didaktisch-methodischer Überlegungen einer Erd- und Weltdarstellung. […] Neben den textlichen Ausführungen einer neuen Grundkonzeption für Erdatlanten und physisch-geographische Atlaskarten wurde versucht, in praktisch-kartographischer Arbeit den konzipierten Atlas im Rohbau (Kartennetze, -ränder sowie die Randbeschrifiung und für Europa und Afrika das detaillierte Küsten- und Gewässernetz) herzustellen. Der so entstandene Atlasband — in Auszügen diesem Heft beigegeben — ist ein integraler Bestandteil der Arbeit. [...]
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Atlaskartografie ; Geschichte ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 72
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  • 73
    facet.materialart.
    Unknown
    Inst. f. Physische Geographie, FU, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:47
    Publication Date: 2021-03-29
    Description: Inhaltsverzeichnis : EHLERS, J. & MENSCHING, H.: Küstenversatz und Prielverlagerungen an der Nordseeküste. S. 9-22 ; FRÄNZLE, O.: Periglaziäre Formung der Altmoränengebiete Schleswig-Holsteins. S. 23-35 ; HEMPEL, L.: Rezente und fossile Mesoformen der Abtragung und Aufschüttung in Ausräumen von Schichtkammlandschaften im Teutoburger Wald. S. 37-47 ; LEHMEIER, F.: Zum Formenschatz der Schichtkammlandschaft im Niedersächsischen Bergland. S. 49-61 ; GARLEFF, K., BRUNOTTE, E. & STINGL, H.: Fußflächen im zentralen Teil der Hessischen Senke. S. 63-76 ; MÖLLER, K.: Das Eschweger Becken und seine Randbereiche — Ergebnisse geomorphographischer und hydrochemischer Analysen. S. 77-92 ; GLATTHAAR, D.: Vertikalbewegungen und ihre Bedeutung für die Formenentwicklung im Westerwald. S. 93-106 ; MÜLLER, M.J.: Periglaziärfluviale, solifluidale und abluale Formung im westlichen Hunsrück und am Ostrand der Trier-Bitburger Mulde. S. 107-118 ; BARSCH, D. & MÄUSBACHER, R.: Zur fluvialen Dynamik beim Aufbau des Neckarschwemmfächers. S. 119-128 ; LESER, H.: Schichtstufen und Talrandstufen in Südwestdeutschland. S. 129-147 ; FARRENKOPF, D.: Relief und Wasserhaushalt im Eyachtal, Nordschwarzwald. S. 149-154 ; LESER, H. & METZ, B.: Vergletscherungen im Hochschwarzwald. S. 155-175 ; HABBE, K.A.: Was kann eine geomorphologische Vollkartierung für die Stratigraphie des Quartärs leisten? S. 177-196 ; RATHJENS, C.: Jungglaziale Formung und spätglazialer Eisabbau im Chiemgau. S. 197-205 ; FISCHER, K.: Die würmzeitliche und stadiale Vergletscherung der Berchtesgadener Alpen. S. 207-225 ;
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Deutschland ; Geologie ; Geomorphologie ; Glazial ; Gletscher ; Küste ; FID-GEO-DE-7
    Language: German
    Type: anthology_digi
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  • 74
    facet.materialart.
    Unknown
    Selbstverl. des Inst. für Phys. Geographie der Freien Univ. Berlin, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:50
    Publication Date: 2021-03-29
    Description: Vorliegende Untersuchung stellt einen Beitrag zur Forschung in der Schneehydrologie dar. Dem wachsenden Bedürfnis der Wasserwirtschaft, Informationen über Schneedeckenauf- und -abbau und die Möglichkeiten der Modellbildung zu erhalten, wurde folgende Untersuchung am Beispiel eines nordskandinavischen Einzugsgebietes, des 53,9 km2 großen Isdalen, durchgeführt. Ausgehend vom derzeitigen Stand der Forschung, in der Schneeschmelzmodelle als "Stations- oder Punktmodelle" existieren, werden in dieser Arbeit raumbezogene differenzierte Gebietsmodelle vorgestellt.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Skandinavien ; Schneehydrologie ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 127
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  • 75
    facet.materialart.
    Unknown
    Im Selbstverlag des Institutes für Physische Geographie der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:43
    Publication Date: 2021-03-29
    Description: ZUSAMMENFASSUNG : Für den Bereich der Libyschen Wüste sind, ebenso wie für die Zentralsahara, spätpleistozäne Feuchtphasen durch geomorphologische und prähistorische Befunde nachgewiesen. Diese Feuchtphasen lassen sieh jedoch nur in geringem Umfang in den 14C Datierungen von Grundwässern aus diesem Bereich wiederfinden. In dieser Arbeit wird festgestellt, wie hoch die Grundwasserbildung einzelner geomorphologischer Einheiten bei gegebenem Paläoklima war. Dazu erfolgt in einem ersten Schritt eine geomorphologische Kartierung eines etwa 250 km langen und 80 km breiten Streifens auf der Basis von Landsat-Satelitenbildern und Geländebefunden und die Rekonstruktion dreier Varianten eines fiktiven paläoklimatischen Jahresganges mit 242 mm, 194 mm und 147 mm Jahresniederschlag. Den geomorphologischen Komplexen werden bodenphysikalische Kenngrößen zugeordnet, dazu werden im Gelände ungestörte Proben in Stechzylindern geborgen und daran im Labor die gesättigte Wasserleitfähigkeit und pF-Kurve bestimmt. Nebenprodukt einer statistischen Bearbeitung der Meßwerte ist eine multiple Regressionsgleichung zur Bestimmung der Kf-Werte aus der pF-Kurve für Wüstenböden. In einem Exkurs erfolgt die Betrachtung der hydrologischen Bedeutung und möglichen Genese von häufig mit Flugsand verfüllten, polygonalen Rißsystemen im Boden. Mittels einer Clusteranalyse werden die Meßdaten in 10 Klassen gruppiert; sie finden dann als bodenphysikalische Kenngrößen Eingang in ein Finite-Differenzen-Modell, das auf der Basis der PORKER-PLANCK-GLEICHUNG den Bodenwasserhaushalt und damit die regionale Grundwasserneubildung simuliert. Diese Grundwasserneubildungsraten werden anhand des Verlaufes der Bodenwassergehalte hinsichtlich des Einflusses von Pflanzen und dadurch bedingter Transpirationsverluste diskutiert. Die höchsten Grundwasserneubildungsraten werden für den Bereich der Schwemmfächer des Gilf-Kebir-Vorlandes und für Sandschleppen in den Wadis des Gilf Kebir ermittelt. (60 mm bzw. 25 mm bei 242 mm bzw. 194 mm Jahresniederschlag). Die Bedeutung der weiten Serirflächen ist wesentlich geringer: Hier hat die wahrscheinlich präholozäne Anfüllung des Porenraumes mit Eisenoxiden und Carbonaten zu einer sekundären Überprägung der bodenphysikalischen Kennwerte geführt und so die Grundwasserbildungsrate reduziert (24 mm-36 mm bzw. 6 min-10 mm bei 242 mm bzw. 194 mm Jahresniederschlag). Ähnliche Werte wie die Serirflächen liefern die Bereiche mit rezenten Flugsanden (27 mm bzw. 11 mm bei 242 mm bzw. 194 mm Jahresniederschlag). Die Simulationsläufe mit 147 mm Jahresniederschlag erbrachten nirgends eine Grundwasserspende, ebenso kann für die übrigen geomorphologischen Einheiten eine Grundwasserneubildung bei den gewählten Paläoklimaten ausgeschlossen werden. Die nur geringe Befunddichte an holozänen Grundwässern im ägyptischen Teil der Libyschen Wüste läßt für die holozänen Feuchtphasen Niederschläge von maximal 200 mm/a als wahrscheinlich erscheinen.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Grundwasser ; Hydrographie ; Paläoklima ; Sahara ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 98
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  • 76
    facet.materialart.
    Unknown
    Im Selbstverlag des Institutes für Physische Geographie der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | FB 23640:2
    Publication Date: 2021-03-29
    Description: Zur Vereinfachung wird die Vielfalt der Karstformenbezeichnungen bereinigt. Erdfall wird als Form, die in nicht verkarstungsfähigen Serien liegt, aber auf Tiefensubrosion zurückgeht, der Doline, einer Form, die in verkarstungsfähigem Material liegt, gegenübergestellt. Als Grundlage der Arbeit wurde eine detaillierte Kartierung der Auslaugungsformen durchgeführt. Hinsichtlich rezenter Subrosion erwies es sich als notwendig, die in Oberflächenwässern und wasserwirtschaftlich erfaßten Wässern gelösten Bestandteile von Chlorid, Sulfat und Karbonat zu ermitteln. Die Auswertung der gewonnenen Daten zeigt, daß ein Zusammenhang mit Gebieten besteht, die durch aktuelle Erdfälle und Dolineneinbrüche gekennzeichnet sind. Als Voraussetzung zur Reliefgenese gilt, daß das Gebiet des Unterwerra-Sattels entscheidend durch die saxonische Gebirgsbildung an der Wende Jura/Kreide und die nachfolgende klimageomorphologische Entwicklung geprägt ist. Anhand der geomorphographischen Analyse wird der Einfluß der Salz-, aber auch der Sulfatauslaugung auf die Landschaftsgenese belegt. Die Auslaugung des Salzes (Nal), dessen Mächtigkeit im Untersuchungsgebiet mit mindestens 120 m angenommen wird, und der unterlagernden ca. 130 m nächtigen Zechsteingipse (A 1 - A 3) zerrüttet die überlagernden triassischen Schichten weiter. Darüber hinaus wirkt die Subrosion von mehr als 30 m Rötgipsen und 50 m Gipsen des Mittleren Muschelkalkes im Hangenden des Zechsteins reliefformend. Die ermittelten Ergebnisse - rezente und subrezente Formen, Lösungswerte – werden zunächst in kleineren Gebietseinheiten analysiert. Die Ergebnisse der Nasseranalysen bestätigen das geomorphographische Ergebnis, so daß in Anlehnung an die Gipshorizonte von Stockwerkssubrosion gesprochen werden kann. Entscheidend geprägt ist die heutige Situation jedoch durch vorangegangene Zechsteinsalzauslaugung im tieferen Untergrund. Diese hat in den Hangendserien die Wasserwegsamkeit verstärkt, so daß die nachfolgende Sulfatsubrosion den Kleinformenschatz vor der Schichtstufe des Mittleren Buntsandsteins steuern konnte. Aufgrund ihrer für Auslaugungsgebiete typischen Ausprägung wird die Lage der Schichtstufe in weiten Teilen des Untersuchungsgebietes an das in Auslaugung befindliche Salz geknüpft. Das Auftreten von Subrosionsformen vor der Landstufe des Kaufunger Waldes, den östlichen Meißnerhängen, dem Anstieg des Schlierbachswaldes sowie vor dem Anstieg des Buntsandsteins zwischen Heldra, Frieda und Bad Sooden-Allendorf untermauert diese Interpretation. In der südlichen und südöstlichen Umrahmung des Untersuchungsgebietes wird der Salzhang aufgrund geomorphographischer Kriterien unter dem Steilanstieg des Unteren Muschelkalkes ausgewiesen. Aufgrund dieser Befunde wird die primäre Salzverbreitung als über den Unterwerra-Sattel reichend angenommen, womit sich, abgesehen von den Einflüssen der saxonischen Tektonik, alle Reliefentwicklungsprozesse allein durch Auslaugung und folgende geomorphologische Überprägung erklären lassen. Darüber hinaus ist dieses Gebiet in Nordhessen nicht nur durch eine über alle Schichten hinweggreifende Rumpfflächenbildung gekennzeichnet, sondern die Resistenzunterschiede wurden - unabhängig vom Klima - beständig herausgearbeitet. Aus diesen Ergebnissen wurde ein übergeordnetes Modell zur Reliefentwicklung erstellt. Danach existieren im Untersuchungsgebiet fünf Reliefgenerationen, wobei die postsaxonische Reliefentwicklung mit zerstörtem, die Auslaugung begünstigendem Hangendverband nach der Landhebung bzw. dem Einbruch der das Gebiet begrenzenden Grabenstrukturen, die bis ins Alttertiär reicht, nicht erfaßt werden konnte. [...]
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Hessisch-thüringisches Bergland {Geologie} ; Morphogenese einzelner Regionen {Geomorphologie} ; Deutschland ; Hessen ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 196
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  • 77
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    Unknown
    Im Selbstverlag des Institutes für Physische Geographie der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:49
    Publication Date: 2021-03-29
    Description: Die rezente Morphodynamik der Oberflächenformen des Colorado Plateaus wirkt in einer klimageomorphologischen Zuordnung im Rahmen des arid-morphodynamischen Systems. Die Prozesse sind durch hohe Formungsakfivität gekennzeichnet. Entsprechend der geologischen Ausstattung des Colorado Plateaus mit in der Regel flach oder mäßig steil lagernden Sedimentgesteinen wechselnder Resistenz vollzieht sich die rezente Formung innerhalb einer Schichtstufenlandschaft, die neben der Normalausbildung des Schichtstufenreliefs auch Schichttafeln und Schichtkämme umfaßt Da das klimatische Umfeld der strukturbestimmten Reliefs auf dem Colorado Plateau weitgehend konstant ist, und damit die Reliefbeeinflussung durch Klimavarianz entfällt, können aus der Reliefdifferenzierung die Einflüsse nicht-klimatischer Steuerungsfakroren ohne Überlagerungseffekte abgeleitet werden. [...]
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Colorado Plateau ; Geomorphogenese ; Hochschulschrift ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 189
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  • 78
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    Unknown
    Selbstverl. des Inst. für Phys. Geographie der Freien Univ. Berlin, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:51
    Publication Date: 2021-03-29
    Description: Nach einer Übersicht über die methodische Entwicklung der Geschiebe- und Kieszählungen zur Erforschung der Moränenstratigraphie in pleistozän vereisten Gebieten südlich und westlich der Ostsee werden der pleistozäne Schichtaufbau und die Morphologie im engeren Untersuchungsgebiet in Berlin (West) vorgestellt. Die Beschreibung erfolgt anhand der heutigen naturräumlichen Einheiten: dem Bamim, der Havelniederung zwischen Barnim und Glien, dem südlich davon verlaufenden Urstromtal, der Teltow-Platte, der Nauener Platte und der Havelseenrinne.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Geomorphologie ; Moränenstratigraphie ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 126
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  • 79
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    Unknown
    Selbstverl. des Inst. für Geograph. Wiss., Berlin
    In:  Herausgeberexemplar (FU Berlin) | 96 B 2193
    Publication Date: 2021-03-29
    Description: Eine wichtige Voraussetzung für die Einführung geeigneter Erosionsschutzmaßnahmen in die landwirtschaftliche Praxis ist eine möglichst genaue, schlagbezogene Quantifizierung der Erosion bzw. des Erosionsrisikos einschließlich der damit verbundenen, langfristigen Folgewirkungen (vgl. RAT FÜR UMWELTFRAGEN, 1935, S. 330ff). Aufgrund der Vielzahl der hierbei zu berücksichtigenden Einzeleinflüsse ist dies nur mit Hilfe computergestützter, mathematischer Modelle möglich. Ziel der vorliegenden Arbeit ist es, ein solches, auf die praktischen Belange des Boden- und Gewässerschutzes abgestelltes Bodenerosionsmodell zu entwickeln.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Anthropogene Geomorphologie ; Bodenaufnahme und Bodenkartierung ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 152
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  • 80
    facet.materialart.
    Unknown
    Im Selbstverlag des Institutes für Physische Geographie der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:60
    Publication Date: 2021-03-29
    Description: In der vorliegenden Arbeit wurden Ergebnisse hydrologischer und stratigraphischer Studien zur Entwicklungsgeschichte von Brandenburger Kesselmooren vorgestellt. Für die Erfassung der aktuellen und historischen biotischen und abiotischen Standortfaktoren wurden verschiedene Methoden angewandt: floristische und vegetationskundliche Untersuchungen sowie hydrologische, hydrochemische, geochemische, geophysikalische und sedimentologische Untersuchungen und Makrorest-‚ Mikrorest- und Pollenanalyse. Der zeitlichen Einordnung der entwicklungsgeschichtlichen Prozesse dienten Radiocarbondatierungen und die pollenanalytischen Untersuchungen. Ziel der Arbeit war es, Entwicklungsstadien auszuscheiden, die von den untersuchten Mooren seit ihrer Entstehung durchlaufen wurden. Aufgrund der stratigraphischen Untersuchungen wurden Aussagen zur Beckengenese und zu den einzelnen See- und Moorentwicklungsphasen getroffen, zum Verlandungsvorgang, zu Moorbildungsbedingungen und Sukzessionsstadien. Den Entwicklungsstadien konnten über geochemische und -physikalische Untersuchungen abiotische Standortfaktoren zugeordnet werden. Die aktuellen Standortveränderungen wurden erfaßt und die vorgenommenen Erhaltungs- und Wiedervernässungsmaßnahmen dokumentiert und bewertet.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Teilfragen zu Brandenburg {Geographie} ; Moorkunde {Geomorphologie} ; Ostdeutschland, Berlin, Brandenburg {Hydrologie} ; Moorkunde {Geologie} ; Brandenburg ; Kessel-Moor ; Stratigraphie ; Hydrologie ; Geschichte ; Hochschulschrift ; Deutschland ; C/N ; Moor ; Pollen ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 159
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  • 81
    facet.materialart.
    Unknown
    Selbstverl. des Inst. für Physische Geographie der Freien Univ. Berlin, Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:52
    Publication Date: 2021-03-29
    Description: Formenhinterlassenschaften des nordischen Inlandeises akkumulativer und erosiver Art werden als eine zeitlich zusammenhängende Funktionsgemeinschaft (〉 glaziale Serie) erklärt, auf ihre Besonderheiten und auf ihre räumliche Verteilung hingewiesen. Die wesentlichen Forschungsergebnisse vom Süd- bzw. Südwestrand (DDR und Schleswig-Holstein), sowie vom Westrand (Dänemark und Südschweden) des nordischen Inlandeises und seiner Rückschmelzlagen werden teils unter erforschungsgeschichtlichen Aspekten (Schleswig-Holstein), teils in Hinsicht auf eine eher aktuelle Erkenntnisbilanz (DDR, Dänemark und Südschweden) dargelegt. Kartierungen i.S. der Erfassung des oberflächennahen Substrats, verschiedene Methoden und Methodenkombinationen von Bohrverfahren, Aufgrabungen und Aufschlußkartierungen wurden im Gelände durchgeführt. Die sedimentologische, geschiebeanalytische und palynologische Bearbeitung geeigneter Sedimente sowie Radiokarbondatierungen und wenige zoologische Aussagen stellen die wesentlichen Auswertungen der Feldarbeiten dar. Auf der Grundlage der Pedostratigraphie läßt sich außer den aus der Literatur bekannten Interglazial-/Interstadialvorkommen an einer Stelle ein eem-/bzw. frühweichseleiszeitlicher Pedokomplex, sowie zahlreiche Spätglazialvorkommen terrestrischer und limnischer Fazies neu beschreiben. Lithostratigraphisch lassen sich zwei weichseleiszeitliche Moränen i.S. von Grundmoränen trennen, die sicherlich unterschiedlichen Eiworstößen innerhalb der Weichseleiszeit angehören. Diesen beiden Vorstößen sind morphostratigraphisch unterschiedliche Rückschmelzlagen zuzuordnen. Eine wartheeiszeitliche Moräne konnte mehrfach festgestellt werden. Auf der Grundlage der Morphostratigraphie werden insgesamt vier Haupteisrandlagen im Arbeitsgebiet als WH 1 bis WH 4 ausgewiesen, die durch Randlagen zweiter und dritter Ordnung noch untergliedert werden können. Dabei ergibt sich ein im Detail anderer Verlauf als bei EGGERS (1934), GRIPP (1954, 1964) und DÜCKER (1958). Auf der Grundlage bio- und chronostratigraphischer Untersuchungen wurde die Vegetationsentwicklung des Spätglazials bis ins Mittelholozän hinein verfolgt. Ergebnisse der Radiokohlenstoffdatierung stimmen mit den ermittelten vegetationsgeschichtlichen Abschnitten im Vergleich zu der allgemeinen Vegetationsentwicklung in Schleswig-Holstein und Mitteleuropa überein. Es konnte somit ein Mindestalter für die Bildung limnischer Sedimente an den untersuchten Lokalitäten gefunden werden.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Landschaftsentwicklung ; Jungpleistozän ; Schleswig-Holstein ; Glazial ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 149
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  • 82
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    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:4527;KART H 140:Berlingerode
    Publication Date: 2021-07-20
    Description: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum, SUB Göttingen), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen.
    Description: map
    Description: DFG, SUB Göttingen
    Keywords: 912 ; 554.3 ; Berlingerode ; Geologische Karte ; GeoTIFF ; FID-GEO-DE-7
    Language: German
    Type: map_digi
    Format: 14
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  • 83
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    Friedr. Vieweg & Sohn, Braunschweig
    In:  SUB Göttingen | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 42 Beiträge zu Themengebieten der Physik der festen Erde, des magnetischen und elektrischen Felds der Erde, der Physik der Atmophäre und der angewandten Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1937.
    Description: 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0004.pdf"〉Titelseite〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0005.pdf"〉Autorenverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0006.pdf"〉Sachverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0007.pdf"〉Wendepunkte in der Laufzeitkurve sinusförmiger Wellen〈/a〉〈br〉(Ramspeck, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0008.pdf"〉Zur Seismizität Afrikas während der Jahre 1913 bis 1930〈/a〉〈br〉(Rohleder, P. T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0009.pdf"〉Zur Frage der Variabilität der Chandlerschen Periode〈/a〉〈br〉(Ledersteger, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0010.pdf"〉Experimentelle Untersuchungen zum Rauhigkeitsproblem in der bodennahen Luftschicht〈/a〉〈br〉(Paeschke, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0012.pdf"〉Vorträge, gehalten auf der XII. Tagung der Deutschen Geophysikalischen Gesellschaft, vom 8. bis 10. Oktober 1936 in Berlin〈/a〉〈br〉(Kohlschütter, E., Lettau, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0016.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Schulz, B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0017.pdf"〉Direkte Methoden zur Bestimmung von Störungsmassen aus Anomalien der Schwereintensität〈/a〉〈br〉(Jung, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0018.pdf"〉Die absolute Schweremessung〈/a〉〈br〉(Wegener, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0019.pdf"〉Über die Funkschwierigkeiten bei den Gronau-Flügen über Grönland〈/a〉〈br〉(Roßmann, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0020.pdf"〉Das Gesetz von Helmholtz und seine Anwendung auf Geotektonik〈/a〉〈br〉(Tromp, S. W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0021.pdf"〉Bemerkungen zu den vorstehenden Ausführungen von S. W. Tromp〈/a〉〈br〉(Jung, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0022.pdf"〉Antworten auf die kritischen Bemerkungen von H. Jung〈/a〉〈br〉(Tromp, S. W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0023.pdf"〉Geometische Lösung der Grundaufgaben der in der Geologie angewandten Seismik〈/a〉〈br〉(Berroth, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0024.pdf"〉Gebäudeschwingungen beim Erdbebenstoß〈/a〉〈br〉(Sponheuer, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0025.pdf"〉Die Ursachen des seismisch-elektrischen Effektes〈/a〉〈br〉(v. Thyssen, S., Hummel, J. N., Rülke, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0026.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen. XXIX. Ortung einer Maschine durch ihre Bodenschwingungen〈/a〉〈br〉(Schulze, G. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0028.pdf"〉Ein photoelektrischer Schwingungsmesser〈/a〉〈br〉(Dobberstein, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0029.pdf"〉Zur neuen Haalckschen Theorie des Erdmagnetismus〈/a〉〈br〉(Schlomka, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0030.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Beurlen, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0031.pdf"〉Gravitationsfeld und Oberflächengestalt der Erde und ihre geometrische Festlegung〈/a〉〈br〉(Berroth, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0032.pdf"〉Note on the Variation of Gravity with Depth〈/a〉〈br〉(Benfield, A. E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0033.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen. XXX. Die Wellenausbreitung der Erdbeben vom 20. November 1932 (Nordbrabant) und 7. Juni 1931 (Doggerbank)〈/a〉〈br〉(Gees, R.-H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0035.pdf"〉Ein mechanisch registierendes Vertikalanemometer und seine Verwendung im Gelände〈/a〉〈br〉(Dieterichs, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0036.pdf"〉Einige Bemerkungen zu der magnetischen Störung von 24. bis 28. April 1937〈/a〉〈br〉(Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0037.pdf"〉Zur Frage nach der Ursache des Erdmagnetismus (Erwiderung auf die Ausführungen von T. Schlomka in Heft 2/3 dieser Zeitschrift)〈/a〉〈br〉(Haalck, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0038.pdf"〉Erwiderung an Herrn Haalck〈/a〉〈br〉(Schlomka, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0039.pdf"〉Entgegnung auf die Ausführungen von T. Schlomka〈/a〉〈br〉(Haalck, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0040.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Schulze, G. A., Suckstorff, G. A., Fanselau, G., Kohlschütter, E., Meißner, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0041.pdf"〉Die Lotabweichungen in der Umgebung des Nanga Parbat und ein Versuch zu ihrer geophysikalischen Deutung〈/a〉〈br〉(Jung, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0042.pdf"〉Die Fehler bei der Aufnahme der drahtlosen Zeitsignale und Vorschläge zur Verbesserung〈/a〉〈br〉(Gockel, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0043.pdf"〉Über eine photographische Ableseeinrichtung am Doppelkompaß〈/a〉〈br〉(Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0044.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Schulze, G. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0045.pdf"〉Ein neuer mechanischer Beschleunigungsmesser〈/a〉〈br〉(Martin, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0047.pdf"〉Beiträge zur Konstruktion eines Vertikalseismometers〈/a〉〈br〉(Meißer, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0049.pdf"〉Untersuchungen über Vorgänge an der Schneide beim Schwingen eines Schwerependels〈/a〉〈br〉(Köller, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0050.pdf"〉Geomagnetische Messungen an Lamprophyrgängen in der Lausitz〈/a〉〈br〉(Lauterbach, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0051.pdf"〉Über die makroseismischen Verfahren zur Bestimmung der Herdtiefe und ihre Anwendung bei Lockerböden〈/a〉〈br〉(Sponheuer, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0054.pdf"〉Geophysikalischer Mond-Almanach〈/a〉〈br〉(Bartels, J., Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0055.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen. XXXII. Ausbreitung der natürlichen Bodenunruhe (Mikroseismik) nach Aufzeichnungen mit transportablen Horizontalseismographen〈/a〉〈br〉(Krug, H.-D.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0056.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Ernst, T., Schulz, B., Kames, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0013/LOG_0058.pdf"〉Geophysikalische Berichte〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0011/LOG_0065.pdf"〉Mitgliederverzeichnis der Deutschen Geophysikalischen Gesellschaft nach dem Stande vom 1. Dezember 1937〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Atmosphäre ; Aurora ; Deformation ; Geomagnetismus ; Gezeiten ; Gravimetrie ; Gravitation ; Gravity ; Hydrographie ; Ionosphäre ; Luftelektrizität ; Physische Geografie ; Seismik ; Statik ; Strahlung ; FID-GEO-DE-7
    Language: German , English
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  • 84
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    Physika-Verlag, Würzburg
    In:  Herausgeberexemplar (Archiv der DGG in Leipzig) | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: INHALTSVERZEICHNIS : FUCHS, K.: Investigation on the Wave Propagation in Wedge-shaped Media . . . 51 ; CHATTERJEE, N. D.: Paläomagnetische Untersuchungen an ladinischen Eruptiven der westlichen Dolomiten, Norditalien . . . 90 ; Vorlesungsverzeichnis . . . 107 ; Buchbesprechungen . . . 111 ;
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Physische Geografie ; Geomagnetismus ; Vulkanismus ; waves ; Wellen ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
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  • 85
    facet.materialart.
    Unknown
    Physika-Verlag, Würzburg
    In:  Herausgeberexemplar (Archiv der DGG in Leipzig) | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: INHALTSVERZEICHNIS : FRIEDRICH BURMEISTER zum 75. Geburtstag . . . 227 ; DEMNATI, A. und G. DOHR: Reflexionsseismische Tiefensondierungen im Bereich des Oberrheintalgrabens und des Kraichgaues . . . 229 ; GUTDEUTSCH, R. und M. KOENIG: Über die Signalgeschwindigkeit gebeugter elastischer Wellen . . . 246 ; TÄRCZY-HORNOCH, A.: Über die Genauigkeit der berechneten durchschnittlichen Geschwindigkeit bei der seismischen Reflexionsmethode . . . 260 ; Briefe an den Herausgeber . . . 273 ; Verzeichnis der geophysikalischen Vorlesungen (Wintersemester 1965/66) . . . 276 ; Mitteilung . . . 280 ; Buchbesprechungen . . . 281 ;
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Physische Geografie ; Seismik ; Wellen ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
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  • 86
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    Unknown
    Friedr. Vieweg & Sohn, Braunschweig
    In:  SUB Göttingen | 8 Z NAT 2148
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 46 Beiträge zu Themengebieten der Physik der festen Erde, des magnetischen und elektrischen Felds der Erde, der Physik der Atmophäre, der Hydrographie und der angewandten Geophysik, veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1938.
    Description: 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0004.pdf"〉Titelseite〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0005.pdf"〉Autorenverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0006.pdf"〉Sachverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0007.pdf"〉Polbahn und primäres 〈i〉z〈/i〉-Glied〈/a〉〈br〉(Ledersteger, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0008.pdf"〉Ein neues piezoelektrisches Vertikalseismometer〈/a〉〈br〉(v. Thyssen, S.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0009.pdf"〉Über die Verwendung langperiodischer Seismometer〈/a〉〈br〉(Krumbach, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0012.pdf"〉Niveauänderungen im Schüttergebiet der Erdbeben in Südbulgarien am 14. und 18. April 1928〈/a〉〈br〉(Jankow, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0014.pdf"〉Über vollständig isostatische Reduktion〈/a〉〈br〉(Jung, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0015.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Schulz, B., Suckstorff, G. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0016.pdf"〉Leipzig–Bergen. Festvortrag zur 25-Jahrfeier des Geophysikalischen Instituts der Universität Leipzig〈/a〉〈br〉(Bjerknes, V.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0017.pdf"〉Zum Aufsatz von Th. Koulomzine und A. Boesch über die Vertikal-Feldwaage〈/a〉〈br〉(Schmidt, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0018.pdf"〉Potsdamer erdmagnetische Kennziffern〈/a〉〈br〉(Bartels, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0019.pdf"〉Der charakteristische Verlauf eines erdmagnetischen Sturms, nach Potsdamer Registrierungen〈/a〉〈br〉(Rössiger, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0020.pdf"〉Berechnung der Stratosphärentemperatur aus Messungen der atmosphärischen Absorptionskoeffizienten des Ozons〈/a〉〈br〉(Penndorf, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0021.pdf"〉Die Messung der Antennenersatzkapazität in der Funkmutung〈/a〉〈br〉(Fritsch, V.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0023.pdf"〉Neuere Gangbeobachtungen an Pendeluhren〈/a〉〈br〉(Gockel, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0024.pdf"〉Tägliche Sonnenflecken-Relativzahlen für das 1. Vierteljahr 1938〈/a〉〈br〉(Brunner, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0025.pdf"〉Referate und Mitteilungen〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0026.pdf"〉Druckfehlerberichtigung〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0027.pdf"〉Über einige die Physik des Erdinnern betreffende atomtheoretische Beziehungen〈/a〉〈br〉(Haalck, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0028.pdf"〉Bemerkungen zum Artikel von Karl Jung: "Über vollständig isostatische Reduktion"〈/a〉〈br〉(Niethammer, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0029.pdf"〉Über die Polhöhenschwankung in Batavia August 1931 bis September 1936〈/a〉〈br〉(Schumann, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0030.pdf"〉The increase of the Temperature downwards in the Crust of Rocks〈/a〉〈br〉(Dahlblom, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0031.pdf"〉Beiträge zur Theorie des Erdaufbaus〈/a〉〈br〉(Lorenz, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0032.pdf"〉Ein neuer statischer Schweremesser zur Messung und Registrierung lokaler und zeitlicher Schwereänderungen〈/a〉〈br〉(Graf, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0035.pdf"〉Das Verhalten noch freistehender Brückenpfeiler bei Schwingungen und deren Abhängigkeit vom Untergrund〈/a〉〈br〉(Förtsch, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0036.pdf"〉Untersuchungen über die Windstruktur und den Bau der Windmeßgeräte〈/a〉〈br〉(Schröder, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0037.pdf"〉Beziehung zwischen Meereshöhe und Schwere in gestörten Gebieten〈/a〉〈br〉(Angenheister, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0038.pdf"〉Potsdamer erdmagnetische Kennziffern〈/a〉〈br〉(Bartels, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0039.pdf"〉Tägliche Sonnenflecken-Relativzahlen für das 2. Vierteljahr 1938〈/a〉〈br〉(Brunner, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0040.pdf"〉VI. Baltische hydrologische Konferenz〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0041.pdf"〉Nachruf auf Oskar Hecker〈/a〉〈br〉(Kohlschütter, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0043.pdf"〉Zur Frage der regionalen Verkoppelung von Erdbeben〈/a〉〈br〉(Tams, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0044.pdf"〉Einiges über die Widerstandsverfahren der Funkmutung〈/a〉〈br〉(Fritsch, V.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0046.pdf"〉Die Erhaltung der Gebirge〈/a〉〈br〉(Wegener, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0047.pdf"〉Potsdamer erdmagnetische Kennziffern. 3. Mitteilung〈/a〉〈br〉(Bartels, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0048.pdf"〉Tägliche Sonnenflecken-Relativzahlen für das 3. Vierteljahr 1938〈/a〉〈br〉(Brunner, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0049.pdf"〉Bericht über die dreizehnte Tagung der Deutschen Geophysikalischen Gesellschaft〈/a〉〈br〉(Bartels, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0050.pdf"〉Vorträge, gehalten auf der Tagung der Deutschen Geophysikalischen Gesellschaft, vom 19. bis 22. Oktober 1938 in Jena〈/a〉〈br〉(Schlomka, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0052.pdf"〉Besprechung erdmagnetischer Registrierungen im Hinblick auf Vorgänge in der Ionosphäre und Wirkungen in der Höhenstrahlung〈/a〉〈br〉(Bartels, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0055.pdf"〉Aussprache zum Vortrag Bartels〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0056.pdf"〉Zum Nordlicht vom 25. Januar 1938〈/a〉〈br〉(Götz, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0057.pdf"〉Ergebnisse von Dauerregistrierungen der Ionosphäre〈/a〉〈br〉(Dieminger, W., Plendl, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0059.pdf"〉Über den Nachweis der Sonnenstrahlung bei 2150 Å〈/a〉〈br〉(Kiepenheuer, K. O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0060.pdf"〉Diskussionsbemerkung zum Vortrag Kiepenheuer〈/a〉〈br〉(Götz, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0061.pdf"〉Höhenstrahlung und erdmagnetische Variationen〈/a〉〈br〉(Kolhörster, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0063.pdf"〉Die negative Aufladung der Ionosphäre der Erde〈/a〉〈br〉(Rudolph, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0064.pdf"〉Ausgleichung der besten Stationsbeobachtungen mitteleuropäischer Erdbeben〈/a〉〈br〉(Schmerwitz, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0065.pdf"〉Änderungen des Mitglieder-Verzeichnisses (1937) der Deutschen Geophysikalischen Gesellschaft. Stand vom 1. Dez. 1938〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0014/LOG_0066.pdf"〉Geophysikalische Berichte〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Physische Geografie ; Atmosphäre ; Aurora ; Erdmantel ; Gravimetrie ; Gravitation ; Ionosphäre ; Luftelektrizität ; Seismik ; Statik ; Strahlung
    Language: German , English
    Type: anthology_digi
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  • 87
    facet.materialart.
    Unknown
    In:  SUB Göttingen | ZA 34278
    Publication Date: 2021-03-29
    Description: In Niedersachsen werden während der nächsten zwei bis drei Jahrzehnte vermehrt industriell teilabgetorfte Hochmoorflächen (= Leegmoor) nach dem Ende der Abtorfung zurückgegeben, insgesamt nahezu 30.000 ha. Diese sollen gemäß Niedersächsischem Moorschutzprogramm unter gesetzlichen Naturschutz gestellt, wiedervernäßt und renaturiert werden. Eingangs werden gemessene Daten der Wasserbilanz und daraus abgeleitete ökohydrologische Erkenntnisse dargelegt. Da es gegenwärtig in Nordwestdeutschland keine wachsenden Hochmoore mehr gibt, wird die Morphologie ursprünglicher Hochmoore nach Topographischen Karten 1:25.000 der Jahrhundertwende vorgestellt und es wird auf die Erkenntnisse des Botanikers C. A. WEBER (1901) zurückgegriffen, der die Zusammenhänge zwischen Oberflächen-Morphologie, Moorvegetation und Torfbildung überzeugend dargelegt hat. Die geschilderten ökotechnischen Aspekte basieren auf Ergebnissen teils langjähriger Versuche, die der Autor als wissenschaftlicher Mitarbeiter des Bodentechnologischen Instituts Bremen im Niedersächsischen Landesamt für Bodenforschung gewonnen hat, sowie auf umfangreichen Erfahrungen in der Beratung und auf vielen Besichtigungen und in Diskussionen mit Kollegen aus dem In- und Ausland. Es wurde ferner auf Erkenntnisse der Kulturtechnik in der angewandten Bodenkunde zurückgegriffen, so insbesondere bei den Verfahren der Wiedervernässung.
    Description: During the coming two to three decades in Lower Saxony more and more raised-bog cutover fields (= Leegmoore), in sum about 30.000 ha, will be given back for other kinds of utilization after peat cutting is finished. According to the Peatland Conservation Programme of Lower Saxony these areas shall be protected by law and shall then be rewetted and renatured. Introductory in this article measured water balance data and ecohydrological perceptions derived therefrom are explained. As at present there are no growing raised bogs in northwestern Germany the original raised-bog surface morphology is described on the basis of the Topographical Maps 1:25.000 from the turn of the century and of the knowledge of the botanist C. A. WEBER (1901) who has convincingly elucidated the relationship between surface morphology, living vegetation, and peat accumulation. The described ecotechnical aspects are based on results of partly longterm field experiments which the author has won as Senior Officer at the Soil-technological Institute Bremen, on extensive experiences in consulting, as well as on many excursions and in discussions with collegues from Germany and foreign countries. Further, the experiences of agricultural engineering in applied flood irrigation have been used, especially with respect to the rewetting processes.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Moor ; Hochmoor ; Wiedervernässung ; peatland ; bog ; nature conservation ; Renaturierung ; FID-GEO-DE-7
    Language: German
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  • 88
    facet.materialart.
    Unknown
    In:  SUB Göttingen | ZA 34278
    Publication Date: 2021-03-29
    Description: Es werden eingangs die negativen Erfahrungen der Mooraufforstungen Ende des 19. Jahrhunderts aufgrund der modernen Erkenntnisse der Moorkunde und Kulturtechnik gedeutet. Mit Hinweis auf den großräumigen Waldbau auf den Mooren Finnlands, Kanadas und der Sowjetunion werden 4-5 Jahrzehnte alte und jüngste Mooraufforstungen behandelt, die Versuchsaufforstung in Papenburg-Börgermoorweide erläutert und auf die sich daraus ergebenden Folgerungen eingegangen.
    Description: In the beginning, the negative experiences by bog afforesting at the end of the 19th century are explained with the modern knowledge in peat research and agricultural engineering. In reference to the large forestry on peatlands in Finland, Canada and the USSR, recent afforestations and those with an age of 40-50 years are described. Then the experimental reforestation in Papenburg-Börgermoorweide is explained, and the resulting inferences are discussed.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Moor ; Folgenutzung ; peatland ; land-use ; FID-GEO-DE-7
    Language: German
    Type: article_digi
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  • 89
    facet.materialart.
    Unknown
    In:  Herausgeberexemplar
    Publication Date: 2021-03-29
    Description: Von 186 natürlichen Gewässern im Flachland Niedersachsens liegen 48 % in Mooren und Anmooren. Auch die drei größten Binnenseen Steinhuder Meer, Dümmer und Zwischenahner Meer sind von Mooren umgeben. Die Erhaltung und Regeneration von Feuchtbiotopen und Moorgewässern ist seit 1973 gesetzlich vorgeschrieben. Es wird unterschieden zwischen (tiefen) Moorseen und (flachen) Moorteichen, die natürlich entstanden oder durch den Menschen angelegt sind. Es werden die wichtigsten Daten der Wasserbilanz diskutiert, wie Niederschlag und Zufluß (= input) sowie Verdunstung und Abfluß (= output). Auch die Gewässergüte wird angesprochen und damit die Zuordnung zu limnologisch definierten Seentypen.
    Description: About 48 % of the 186 lakes and ponds in Lower Saxony are situated in peatlands and peaty soils. Also the three greatest lakes Steinhuder Meer, Dümmer and Zwischenahner Meer are surrounded by peatland. Since 1973 the law has provided that wet biotopes and moor waters be preserved and regenerated. A distinction is made between (deep) lakes and (shallow) ponds which have formed under natural conditions or were man-made. The important data on the water balance, such as input (rainfall and influx) and output (evaporation and discharge) are discussed. Additionally, the quality of water is discussed and thus, also, the assignment to limnologically defined types of lakes.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Moor ; peatland ; Hydrologie ; FID-GEO-DE-7
    Language: German
    Type: article_digi
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  • 90
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    Unknown
    Friedr. Vieweg & Sohn, Braunschweig
    In:  SUB Göttingen | 8 GEOGR PHYS 203:10
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 63 Artikel zu Themengebieten der Physik der festen Erde, zu magnetischen und elektrischen Feldern der Erde, zu der Physik der Atmophäre und der angewandten Geophysik veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1934.
    Description: 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0004.pdf"〉Titelseite〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0005.pdf"〉Autorenverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0006.pdf"〉Sachverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0007.pdf"〉Karl Mack †〈/a〉〈br〉(Hiller, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0008.pdf"〉Die südalbanischen Erdbeben 1930/31〈/a〉〈br〉(Nowack, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0009.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen〈/a〉〈br〉(Gräfe, H., v. zur Mühlen, W., Müller, H. K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0017.pdf"〉Horizontalsicht bei örtlich veränderlicher Trübung und Beleuchtung〈/a〉〈br〉(Steinhäusser, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0018.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Haase, H., Köhler, R., Berroth, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0019.pdf"〉Beitrag zur Berechnung von Minimum-Stabpendeln〈/a〉〈br〉(Graf, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0020.pdf"〉Zur Theorie elastischer Pendel mit besonderer Berücksichtigung des Holweck-Lejayschen Stabpendels〈/a〉〈br〉(Graf, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0021.pdf"〉Eine neue Methode für sehr präzise magnetische Messungen〈/a〉〈br〉(Koulomzine, T., Bondaletoff, N.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0022.pdf"〉Zur Frage der mit dem temperaturkompensierten Magnetsystem erreichbaren Meßgenauigkeit〈/a〉〈br〉(Kohl, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0023.pdf"〉Die Höhenverteilung der Erd-, Luft- und Höhenstrahlung〈/a〉〈br〉(Suckstorff, G. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0024.pdf"〉Erdstrahlungsmessungen in Bad Nauheim nach der Gammastrahlenmethode〈/a〉〈br〉(Masuch, V.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0025.pdf"〉Referate〈/a〉〈br〉(Jung, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0026.pdf"〉Abschnitt〈/a〉〈br〉(Angenheister, G., Kohlschütter, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0027.pdf"〉Hergesell geb. 29. Mai 1859〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0028.pdf"〉Hecker geb. 21. Mai 1864〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0029.pdf"〉Sprengungen zur Forschungszwecken mit Unterstützung der Notgemeinschaft der Deutschen〈/a〉〈br〉(Duckert, P.)〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0037.pdf"〉Beiträge zu den Luftschallmessungen〈/a〉〈br〉(Meißer, O., Martin, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0039.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen〈/a〉〈br〉(Regula, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0042.pdf"〉Berechnung der Laufzeitkurven des anormalen Schalles für windstille Atmosphäre und Vergleich mit der Laufzeitkurve der Oldebroek-Sprengung vom 15. Dezember 1932〈/a〉〈br〉(Jung, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0043.pdf"〉Ergebisse der Registrierungen von Schallwellen an kreisförmig um den Sprengherd angeordneten Stationen〈/a〉〈br〉(Duckert, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0044.pdf"〉Beobachtungsergebnisse über den Einfluß der "akustischen Umkehrschicht" auf die Schallausbreitung〈/a〉〈br〉(Sandmann, B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0045.pdf"〉Zur Frage der anomalen Schallausbreitung〈/a〉〈br〉(Kölzer, J.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0046.pdf"〉Schalluntersuchungen im Polargebiet〈/a〉〈br〉(Wölcken, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0049.pdf"〉Betrachtungen über ebene Pendel〈/a〉〈br〉(Hahnkamm, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0051.pdf"〉Außenraum und Innenraum (Schlichtung des Streites um die Schwerkraftreduktion)〈/a〉〈br〉(Schwinner, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0052.pdf"〉Bemerkungen zu den Geoiden von Ackerl und Hirvonen〈/a〉〈br〉(Ledersteger, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0053.pdf"〉Auto-Radio als Hilfsmittel geologischer Kartierung〈/a〉〈br〉(Cloos, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0054.pdf"〉Zur photographischen Registrierung von Stationsseismometern〈/a〉〈br〉(Meißer, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0056.pdf"〉Ein Horizontalseismometer für die Aufzeichnung von starken Orts- und Nahbeben〈/a〉〈br〉(Critikos, N. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0059.pdf"〉Die Bedeutung der Unstetigkeiten im Verlauf der Schallgeschwindigkeit mit der Höhe für die normale und anomale〈/a〉〈br〉(Sandmann, B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0060.pdf"〉Referate und Mitteilungen〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0061.pdf"〉Die Relativität der Undulationen〈/a〉〈br〉(Hopfner, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0062.pdf"〉Ein detonierendes Meteor über dem Weserbergland am 2. Januar 1934〈/a〉〈br〉(Hartmann, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0063.pdf"〉Der Meteorfall bei Stadt Rehburg am 2. Januar 1934〈/a〉〈br〉(Trommsdorff, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0064.pdf"〉Vergleich zwischen der Intensität der kosmischen Ultrastrahlung über Grönland und über Deutschland〈/a〉〈br〉(Wölcken, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0065.pdf"〉Das Grundeis〈/a〉〈br〉(Jakuschoff, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0066.pdf"〉Le problème des microséismes et le déferlement des vagues〈/a〉〈br〉(Gherzi, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0067.pdf"〉Note on the Hayford-Bowie tables for calculation 〈i〉g〈/i〉〈/a〉〈br〉(Bullard, E. C.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0068.pdf"〉Kann die Laplacesche Differentialgleichung für das Schwerkraftpotential auch innerhalb der Erdkruste als erfüllt angesehen werden?〈/a〉〈br〉(Grabowski, L.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0069.pdf"〉Vorträge, gehalten auf der XI. Tagung der Deutschen Geophysikalischen Gesellschaft, am 13. bis 15. September 1934 in Pyrmont〈/a〉〈br〉(Jung, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0072.pdf"〉Der geophysikalische Nachweis des Zechsteindolomits〈/a〉〈br〉(Müller, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0073.pdf"〉Berichtigung〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0074.pdf"〉Vorträge, gehalten auf der XI. Tagung der Deutschen Geophysikalischen Gesellschaft, am 13. bis 15. September 1934 in Pyrmont〈/a〉〈br〉(von Seidlitz, W., Sieberg, A., Linke, F., Gerlach, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0079.pdf"〉Zur Frage der Geländekorrektion bei Drehwaagemessungen〈/a〉〈br〉(Tuchel, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0080.pdf"〉Emanation in Boden- und Freiluft〈/a〉〈br〉(Israël, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0081.pdf"〉Die Energie der Heliokathodenstrahlen in ihrer Beziehung zur fortschreitenden Bewegung der Elektronen in den Polarlichtstrahlen〈/a〉〈br〉(Rudolph, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0082.pdf"〉Weitere Untersuchungen mit dem Sanford-Elektrometer〈/a〉〈br〉(Stoppel, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0083.pdf"〉Das Strömungssystem der Luft über Mogadischu〈/a〉〈br〉(Bossolasco, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0084.pdf"〉Messungen mit transportablen statischen Schweremessern〈/a〉〈br〉(Schleusener, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0086.pdf"〉Über den Energietransport bei der Sprengseismik〈/a〉〈br〉(v. Schmidt, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0087.pdf"〉Formen der Bodenschwingung bei sinusförmiger Anregung〈/a〉〈br〉(Köhler, R.)〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0088.pdf"〉Die Ausbreitungsgeschwindigkeit sinusförmiger elastischer Wellen im Boden〈/a〉〈br〉(Ramspeck, A.)〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0089.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Haase, H.)〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0090.pdf"〉Bericht über die elfte Tagung der Deutschen Geophysikalischen Gesellschaft vom 13. bis 15. September 1934 in Bad Pyrmont〈/a〉〈br〉(Jung, K.)〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0091.pdf"〉Berichtigung〈/a〉〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0092.pdf"〉Geophysikalische Berichte〈/a〉〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0093.pdf.pdf"〉Register der Geophysikalischen Berichte〈/a〉〈/li〉 〈li〉〈a href=" https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0010/LOG_0094.pdf"〉Mitgliederverzeichnis der Deutschen Geophysikalischen Gesellschaft nach dem Stande vom 1. Dezember 1934〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG, DFG, SUB Göttingen
    Keywords: 550 ; Geophysik ; Geomagnetismus ; Magnetismus ; Seismik ; Atmosphäre ; Gravitation ; Wellen ; Ionosphäre ; Strahlung ; Radioaktivität ; Erdbeben ; Waves ; Deformation ; Pendel ; Boden ; Deutschland ; Grönland ; FID-GEO-DE-7
    Language: German , English , French
    Type: anthology_digi
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  • 91
    Publication Date: 2021-03-29
    Description: Es wird kurz das Königsmoor bei Tostedt (Krs. Harburg) beschrieben und die anthropogene Entwicklung nach Entwässerung und Moorkultur im Jahre 1905 Vom Hochmoor zum Moorkulturtyp heute dargelegt. Die Von 1950 bis 1979 fortlaufend gemessenen Grundwasserdaten sind als Ganglinie dargestellt (Abb. 5). Die positiven und negativen Abweichungen vom durchschnittlichen Jahresgang sind witterungsbedingt. Aus dem Hochmoor hat sich ein Hochmoorboden mit Oxidations- und Reduktions-Horizont entwickelt. Die mittlere Grundwasseramplitude (Abb. 6) beträgt heute 52 cm zwischen MHW im Winter (= 59 cm unter Flur) und MNW im Sommer (= 111 cm unter Flur). Die Feldkapazität des Hochmoorbodenprofils beträgt heute noch über 70 Vol.-% Wasser. Der Ausdruck "trockengelegtes" Hochmoor bedeutet aus bodenhydrologischer Sicht, daß man den Hochmoorboden heute "trockenen Fußes" begehen kann.
    Description: The peatland area Koenigsmoor (between Hamburg and Bremen) is shortly described, the anthropogeneous development after the first drainage and cultivation (in 1905) from a raised bog to a today cultivated bog soil is explained. The measured groundwater data from 1950 to 1979 are figured as hydrograph (fig. 5). The positive and negative deviations from the average annual course is influenced by the weather. The former raised bog has been developed to a bog soil type with ground—water oxidation and reduction soil horizons. The mean ground-water amplitude (fig. 6) amounts today to 52 cm between the mean maximum in winter (= 59 cm below surface) and the mean minimum in summer (= 111 cm below surface). The field capacity of the raised-bog soil-profile today amounts still to about 70 volume percent water. From the pedohydrological viewpoint the term "dry laid" raised bog means that we can walk on the cultivated bog-soil surface by "dry shod".
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Moor ; Hochmoor ; Hydrologie ; peatland ; bog ; FID-GEO-DE-7
    Language: German
    Type: article_digi
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  • 92
    facet.materialart.
    Unknown
    Friedr. Vieweg & Sohn, Braunschweig
    In:  SUB Göttingen | 8 GEOGR PHYS 203:9
    Publication Date: 2021-03-29
    Description: Dieser Band enthält 79 Artikel zu Themengebieten der Physik der festen Erde, zu magnetischen und elektrischen Feldern der Erde, zu der Physik der Atmophäre und der angewandten Geophysik veröffentlicht durch die Deutsche Geophysikalische Gesellschaft in dem Jahr 1933.
    Description: 〈html〉 〈body〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0004.pdf"〉Titelseite〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0005.pdf"〉Autorenverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0006.pdf"〉Sachverzeichnis〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0007.pdf"〉Die Bestimmung des Verlaufes geneigter Diskontinuitätsflächen (einfallende Schichtgrenzen und Verwerfungen) durch das Widerstandsverfahren〈/a〉〈br〉(Stern, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0008.pdf"〉Über die Notwendigkeit eines großen Beobachtungsstoffes bei statistischen Untersuchungen〈/a〉〈br〉(Baur, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0009.pdf"〉Quantitative Bestimmungen des Luftgehaltes an Radium-Thoriumemanation mittels einer neuen elektrischen Ausströmungsmethode〈/a〉〈br〉(Aliverti, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0010.pdf"〉Einige Korrelationen zwischen seismischer Bodenunruhe in Hamburg und der Brandung in West- und Nordeuropa〈/a〉〈br〉(Tams, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0011.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen〈/a〉〈br〉(Gräfe, H., Ramspeck, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0014.pdf"〉Bemerkungen zu dem Aufsatz von G. Schmerwitz: "Einfluß der Schneidenlagerung auf die Meßgenauigkeit geophysikalischer Instrumente"〈/a〉〈br〉(Schuler, M.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0015.pdf"〉Vorträge, gehalten auf der X. Tagung der Deutschen Geophysikalischen Gesellschaft, Leipzig, 3. bis 6. Oktober 1932〈/a〉〈br〉(Linke, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0017.pdf"〉Die Gezeitenströme und die innere Gezeitenwellen des Atlantischen Ozeans〈/a〉〈br〉(Defant, A)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0019.pdf"〉Die Schwerkraft auf dem Meere〈/a〉〈br〉(Vening Meinesz, F. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0020.pdf"〉Darstellung einer gebietsweise harmonischen Funktion durch eine harmonische Funktion〈/a〉〈br〉(Hopfner, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0021.pdf"〉Bericht über den gegenwärtigen Stand der Entwicklung des statischen Schweremessers〈/a〉〈br〉(Haalck, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0022.pdf"〉Die Genauigkeit von Pendelkontakten und der Einfluß des Steigrades einer Pendeluhr auf die Schwingungsdauer des Pendels〈/a〉〈br〉(Martin, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0023.pdf"〉Das logarithmische Dekrement von Pendeln〈/a〉〈br〉(Meißer, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0024.pdf"〉Bericht über die deutschen geomagnetischen und geoelektrischen Beobachtungen während des Internationalen Polarjahrs 1932/33〈/a〉〈br〉(Nippoldt, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0025.pdf"〉Ein neuer Schwingungsmesser〈/a〉〈br〉(Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0026.pdf"〉Zur physikalischen Theorie des Erdmagnetismus〈/a〉〈br〉(Schlomka, T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0028.pdf"〉Eine hochempfindliche magnetische Feldwaage〈/a〉〈br〉(Ostermeier, J. B.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0029.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Tams, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0030.pdf"〉Berichtigung〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0031.pdf"〉Albert Wigand †〈/a〉〈br〉(Weickmann, L.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0032.pdf"〉Über die Messung der zeitlichen Schwankungen der Schwerebeschleunigung mit Gravimetern〈/a〉〈br〉(Tomaschek, R., Schaffernicht, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0034.pdf"〉Störungen von Pendeluhren durch Bodenerschütterungen〈/a〉〈br〉(Gebelein, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0035.pdf"〉Eine praktische Möglichkeit der Triangulationsverbindung mit dem amerikanischen Kontinent〈/a〉〈br〉(Berroth, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0036.pdf"〉Mapping of Faults by Isogams〈/a〉〈br〉(Vajk, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0037.pdf"〉Beitrag zum Thema: Seismische Bodenunruhe〈/a〉〈br〉(Landsberg, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0038.pdf"〉Eine Untersuchung der Polarisation des Nordlichtes〈/a〉〈br〉(Harang, L.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0039.pdf"〉Die Erde, gebremst, beschleunigt, abgelenkt, – erlebt Erdbeben, Taifune, Tornados usw.〈/a〉〈br〉(Michael, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0040.pdf"〉Nachtrag zur Frage der Schneidenlagerung〈/a〉〈br〉(Schmerwitz, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0041.pdf"〉Bemerkung zu der Arbeit von G. Fanselau: "Ein neuer Schwingungsmesser"〈/a〉〈br〉(Martin, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0042.pdf"〉Erwiderung auf die vorstehende Bemerkung des Herrn Martin〈/a〉〈br〉(Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0043.pdf"〉Zur vorstehenden Erwiderung von G. Fanselau〈/a〉〈br〉(Martin, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0044.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Stüve, Brinkmann)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0045.pdf"〉Schneiden- und Unterlagematerial bei invariablen Pendeln für relative Schweremessungen〈/a〉〈br〉(Meißer, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0046.pdf"〉Invar-Minimumpendel als Magnetstäbe〈/a〉〈br〉(Lettau, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0047.pdf"〉Die hypothesenfreie Bestimmung der Erdfigur mit neuen Hilfsmitteln〈/a〉〈br〉(Gast, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0048.pdf"〉Zur Flutbewegung der festen Erdkruste〈/a〉〈br〉(Kleinschmidt, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0049.pdf"〉Die Flut der festen Erde〈/a〉〈br〉(Tomaschek, R., Schaffernicht, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0050.pdf"〉Der Zusammenhang zwischen Spannung und Verformung bei tektonischen Vorgängen〈/a〉〈br〉(Kienow, S.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0051.pdf"〉Eine Erdbebenwarte im Gebiete der Schwäbischen Alb〈/a〉〈br〉(Hiller, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0052.pdf"〉Das Erdbeben im Fuldagebiet vom 15. Januar 1933〈/a〉〈br〉(Landsberg, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0053.pdf"〉Über die Homogenität des Magnetfeldes bei symmetrischer Spulenanordnung〈/a〉〈br〉(Fanselau, G.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0054.pdf"〉Studie über das luftelektrische Potentialgefälle und dessen Unruhe unter besonderer Berücksichtigung des Einflusses einer Großstadt〈/a〉〈br〉(Kuhn, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0055.pdf"〉Zur Ultraviolettabsorption bodennaher Luftschichten〈/a〉〈br〉(Paul Götz, F. W., Maier-Leibnitz, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0056.pdf"〉Erwiderung zu der Arbeit von H. Schmehl〈/a〉〈br〉(Ansel, E. A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0057.pdf"〉Die Ergebnisse der Entwicklung des Schwerkraftfeldes der Erde nach Kugelfunktionen bis zur 16. Ordnung〈/a〉〈br〉(Ackerl, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0059.pdf"〉Referate〈/a〉〈br〉(Jung, H., Haase, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0060.pdf"〉Die praktische Lösung der zweiten Randwertaufgabe der Geodäsie〈/a〉〈br〉(Hopfner, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0061.pdf"〉Neue Messungsergebnisse mit dem statischen Schweremesser〈/a〉〈br〉(Haalck, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0062.pdf"〉Einige Korrelationen zwischen seismischer Bodenunruhe in Hamburg und der Brandung in West- und Nordeuropa. II.〈/a〉〈br〉(Tams, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0063.pdf"〉Beitrag zur Frage der temperaturabhängigen Störung der Gleichgewichtslage der Drehwaagegehänge〈/a〉〈br〉(Schleusener, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0065.pdf"〉Erwiderung auf den Aufsatz von R. Tomaschek und W. Schaffernicht: Die Flut der festen Erde〈/a〉〈br〉(Kleinschmidt, E.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0066.pdf"〉Bemerkung hierzu〈/a〉〈br〉(Tomaschek, R., Schaffernicht, W.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0067.pdf"〉Die Mitschwingensreduktion von Pendelbeobachtungen 〈i〉(Zu den Ausführungen von E. A. Ansel)〈/i〉〈/a〉〈br〉(Schmehl, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0068.pdf"〉Aufsuchen versteckter Periodizitäten〈/a〉〈br〉(Terebesi, P.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0069.pdf"〉Bemerkungen zu F. Ackerls Berechnung der Geoidundulationen〈/a〉〈br〉(Jung, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0070.pdf"〉Stellungnahme zu dem vorangehenden Aufsatz des Herrn Dr. Jung〈/a〉〈br〉(Ackerl, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0071.pdf"〉Beiträge zur Kenntnis der Erdbebenkunde und seismisch-akustischen Phänomene Nord-Rhodesiens〈/a〉〈br〉(Rohleder, H. P. T.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0072.pdf"〉Mikroseismische Bodenunruhe und Gebirgsbau (Im westlichen Europa)〈/a〉〈br〉(Schwinner, R.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0073.pdf"〉Die Entwicklung der erdmagnetischen Forschung in Bayern〈/a〉〈br〉(Burmeister, F.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0074.pdf"〉Seismische Untersuchungen des Geophysikalischen Instituts in Göttingen〈/a〉〈br〉(Gerecke, Fr., Ramspeck, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0077.pdf"〉Bemerkungen zur angewandten Seismik〈/a〉〈br〉(Reich, H.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0078.pdf"〉Zu vorstehender Arbeit von H. Reich "Bemerkungen zur angewandten Seismik"〈/a〉〈br〉(v. Schmidt, O.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0079.pdf"〉Erdmagnetische Messungen mit Hilfe der Drehwaage〈/a〉〈br〉(Berroth, A, Schleusener, A.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0080.pdf"〉Referate und Mitteilungen〈/a〉〈br〉(Büttner, K.)〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0081.pdf"〉Geophysikalische Berichte〈/a〉〈/li〉 〈li〉〈a href="https://gdz.sub.uni-goettingen.de/download/pdf/PPN101433392X_0009/LOG_0083.pdf"〉Mitgliederverzeichnis der Deutschen Geophysikalischen Gesellschaft nach dem Stande vom 1. Januar 1934〈/a〉〈/li〉 〈/body〉 〈/html〉
    Description: research
    Description: DGG
    Description: DFG
    Description: SUB Göttingen
    Keywords: 550 ; Geophysik ; Seismik ; Magnetismus ; Atmosphäre ; Gravity ; Gravitation ; Gravimetrie ; Strahlung ; Erdbeben ; Luftdruck ; FID-GEO-DE-7
    Language: German , English
    Type: anthology_digi
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  • 93
    facet.materialart.
    Unknown
    TU Berlin
    In:  Autorenexemplar
    Publication Date: 2021-05-25
    Description: Das Ziel vorliegender Untersuchungen war, das ehemalige Ablagerungsmilieu der karnischnorischen Hallstätter Fazies im Berchtesgadener Raum zu charakterisieren. Es wird zum ersten Male eine Überschau des petrographischen, mikrofaziellen, geochemischen, mineralogischen und paläontologischen Bestandes dieser marinen Folge gegeben.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: 551 ; Nördliche Ostalpen {Geologie} ; Mesozoikum ; Fazies ; Kalkalpen ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 177
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  • 94
    facet.materialart.
    Unknown
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:4532;KART H 140:Kelbra
    Publication Date: 2021-06-02
    Description: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum, SUB Göttinegn), Karte aus dem Bestand der SUB Göttingen.
    Description: map
    Description: DFG, SUB Göttingen
    Keywords: 554.3 ; 912 ; Geologische Karte ; Kelbra ; FID-GEO-DE-7
    Language: German
    Type: map_digi
    Format: 64
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  • 95
    facet.materialart.
    Unknown
    Selbstverlag des Institutes für Geographische Wissenschaften der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | ZB 20559:58
    Publication Date: 2021-03-29
    Description: Fragestellung und Ergebnis der Arbeit beschäftigen sich mit einer pleistozänen Vergletscherung der peruanischen Anden, die nach der in Kap. 4 zitierten Literatur und den in Abb. 56 dargestellten Werten derzeit nicht für möglich gehalten wird. Nach der Publikation erster Ergebnisse (SCHULZ 1986, 1987a, 1987b, 1987c, 1988a, 1988b, 1988c, 1988d, 1989b. 1989C, 1990) hat sich daran nichts geändert. Hiermit wird nun in großer Breite das Beleg- und in Teilbereichen auch Beweismaterial aus einer flächendeckenden, repräsentativen Kartenanalyse vorgelegt. Dabei wurde der Eindeutigkeit oberste Priorität eingeräumt. Alle Formenbeispiele, die eine weitergehende, noch größere Vereisung wahrscheinlich machen, werden in der Beweisführung nicht berücksichtigt. Diese über den karteninterpretatorisch abgesicherten Bereich der Vereisung hinausgehende, mutmaßlich noch größere Vergletscherung als in Abb. 1 (in der Anlage) dargestellt, muß eine Geländeprüfung erhärten oder verwerfen.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Physische Geographie der Tropischen Andenländer ; Ehemalige Vereisungen im Allgemeinen {Glazialgeologie} ; Australien und Ozeanien {Glazialgeologie} ; Anden ; Peru ; Bolivien ; Pleistozän ; Vergletscherung ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 148
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  • 96
    facet.materialart.
    Unknown
    Selbstverlag des Institutes für Geographische Wissenschaften der Freien Universität Berlin
    In:  Herausgeberexemplar (FU Berlin) | 2000 B 4537
    Publication Date: 2021-03-29
    Description: Die Badain Jaran Shamo ist als drittgrößte Wüste Chinas durch besondere hydrologische Verhältnisse geprägt, als deren sichtbarer Ausdruck die Existenz von mehr als 100 perennierender Oberflächengewässer im Südosten der Wüste gilt (Abb. 1). In diesem Bereich der Wüste treten auch mit relativen Höhen bis zu 430 m (eigene Messungen mittels Höhenmesser der Fa. THOMMEN) die höchsten Megadünen Zentralasiens, möglicherweise sogar der ganzen Erde auf. Da die Gewässer ganz überwiegend in den Dünentalungen der NE-SW streichenden Megadünen vorkommen, ist ein kausaler Zusammenhang der Gewässerverteilung und der Megadünen zu erwarten. Es ist Ziel, mit der vorliegenden Arbeit die rezenten und vorzeitlichen geoökologischen Verhältnisse lakustriner Systeme am Beispiel der Badain Jaran Wüste und ihres südöstlichen Vorlandes darzulegen und zu deuten sowie einen aktualistisch orientierten Beitrag zur Kenntnis zentralasiatischer Seen und ihrer Veränderungen zu leisten.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 910.02 ; Zentralasien {Hydrologie} ; Mongolei {Geographie} ; Badain Jaran ; Oberflächengewässer ; Landschaftsökologie ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 257
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  • 97
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    Unknown
    In:  SUB Göttingen | 2004 A 27394
    Publication Date: 2021-03-29
    Description: Vom größten Moorgebiet Österreichs, dem Ibm-Waidmoos-Bürmoos-Komplex, werden die vermutliche Urvegetation, die bis ca. 1960 vorhandenen Reste naturnaher Vegetation und die Veränderungen derselben in den letzten fünfundzwanzig Jahren besprochen. Flächen mit ehemaligem Hand-Torfstich sind während dieses Zeitraums nach dem Ende der Nutzung stark verbuscht, frühere Streuwiesengebiete versauern (Ausbreitung von Hochmoorarten) oder verschilfen (Ausbreitung von Phragmites, Cladium und Sphagnum-Arten in der Moosschicht). Auch hier ist eine Verbuschungstendenz vorhanden, sie bleibt aber bisher geringer als erwartet. Im allgemeinen kann man sagen, daß die durch die menschliche Einflußnahme entstandenen Vegetationsgrenzen sich allmählich zu verwischen beginnen und die Vegetation sich auf die natürlichen Umweltfaktoren allein einzustellen beginnt.
    Description: This paper deals with the largest mire complex in Austria, the Ibm-Waidmoos-Bürmoos-complex. It gives a survey of the semi-natural vegetation remaining until c. 1960, the different kinds of disturbance and the changes in the vegetation cover after the conclusion of human interference in some parts of the mire. In areas where peat was formerly cut by hand, trees grew up (Pinus sylvestris, Picea excelsa, Betula pubescens); areas used for litter production became acidified (thereby encouraging raised bog species to spread) or became covered with reeds (spread of Phragmites, Cladium, and Sphagnum species in the moss layer: Sph. palustre, Sph. Papillosum, Sph. subnitens). Here too there is scrub growth but to a lesser extent than expected. In general it can be said that the vegetation limits caused by human interference are gradually beginning to become less distinct, and that the vegetation is starting to respond to environmental factors alone.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 553.21 ; Feuchtgebiete {Biologie, Ökologie} ; Moor ; vegetation ; Sphagnum ; peatland ; mire ; FID-GEO-DE-7
    Language: German
    Type: article_digi
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  • 98
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    Unknown
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:4139
    Publication Date: 2021-06-02
    Description: Geologische Karte 1: 25 000. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum, SUB Göttinegn), Karte aus dem Bestand der SUB Göttingen.
    Description: map
    Description: DFG, SUB Göttingen
    Keywords: 554.3 ; 912 ; Geologische Karte ; Dessau ; FID-GEO-DE-7
    Language: German
    Type: map_digi
    Format: 1
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  • 99
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    Unknown
    Gustav Fischer Verlag Jena
    In:  SUB Göttingen | 8 MIN III, 8552:4
    Publication Date: 2021-07-16
    Description: Das vorliegende Heft ist ein Sonderabdruck aus der 2. Auflage des Handwörterbuches der Naturwissenschaften ‚ das im Verlag von Gustav Fischer in Jena erscheint, und gibt eine gemeinverständliche Einführung in die Erdbebenkunde.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 551.2 ; Seismologie {Geophysik} ; Erdbeben ; Seismologie ; Tektonik ; Epizentrum ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 31
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  • 100
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    Unknown
    Jena G. Neuenhahn, G.m.b.H., Universitäts-Buchdruckerei
    In:  SUB Göttingen | 8 MIN III, 8552:3
    Publication Date: 2021-07-16
    Description: Deutschlands Erdbebentätigkeit pflegt unterschätzt zu werden, weil sie gewöhnlich so harmlos erscheint. Zwar bringt der Jahresverlauf nur wenige Beben, abgesehen von gelegentlichen Schwärmen mit vielen hunderten von Einzelstößen, wie sie besonders dem Vogtland eigentümlich sind. Zudem handelt es sich dabei vorwiegend um schadlose Erderschütterungen, die kaum Beobachtung finden. Aber der Fachmann kennt daneben auch bis in die neueste Zeit hinein Erdbeben mit erheblichen Schäden und selbst Zerstörungen, die für längere Zeit das öffentliche Leben völlig beherrscht haben; mitunter wurde fast Großbebencharakter erreicht.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: 551.2 ; Seismologie {Geophysik} ; Wissenschaftsorganisation und -pflege {Geophysik} ; Erdbeben ; Seismologie ; Deutschland ; Schwarmbeben ; FID-GEO-DE-7
    Language: German
    Type: monograph_digi
    Format: 12
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